classify the following random variables as discrete or continuous

3 1 M: the amount of milk produced yearly by a particular cow.N: the number of eggs laid each month by a hen. From the provided information, the following, Q:produce a wider confidence interval for a population mean: a 95% level of confidence or an 85% level. If the ball lands in a red slot, he receives back the dollar he bet plus an additional dollar. As sometimes happens with probabilities computed as empirical relative frequencies, probabilities in the table add up only to a value other than $1.00$ because of round-off error. The number of patient's arrivals per hour at a medical clinic 5. 1. The result shows that the classification accuracy of the C-RF model is 85%, which is improved by 8, 9, 4 and 3% respectively compared with CART, SVM, CNN and RF. Determine whether or not the table is a valid probability distribution of a discrete random variable. m(CuO) = 10 High School GPA sample size (n)=25 standard deviation (s)=8mL Find the average number monetary gifts a college can expect from every $2,000$ solicitations it sends. A discrete random variable $X$ has the following probability distribution: \[\begin{array}{c|c c c c c} x &77 &78 &79 &80 &81 \\ \hline P(x) &0.15 &0.15 &0.20 &0.40 &0.10 \\ \end{array}\]Compute each of the following quantities. 3. 4.83 0.01, Q:A researcher plans to use a random sample of n=500 families to estimate the mean monthly family, A:Researcher plans to use N = 500 families Classify the following random variables as discrete or continuous:X: the number of automobile accidents per year in Virginia. The amount of milk produced yearly by a particular cow (M) is a continuous variable, as one measures how much milk was produced to know M. The number of eggs laid each month by a hen (N) is a discrete variable, as one counts how much eggs were laid to know N. The number of building permits issued each month in a certain city (P) is a discrete variable, as one counts how many permits were issued to know P. The weight of grain produced per acre (Q) is a continuous variable, as one measures the weight per acre to know Q. The area of lots in an exclusive subdivision 8. The weight of the professional wrestler. Do not write any units. Since this data can be obtained by counting, it is a discrete variable. Determine whether or not the random variable $X$ is a binomial random variable. You can specify conditions of storing and accessing cookies in your browser. patients if she wants to, A:no. 2 So, it is a continuous variable. of different ways to, Q:In a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and, Q:As determined from long experience, the number of automobiles rented per hour, X, at the Rent-A Car, A:Automobiles Rented Probability View this solution and millions of others when you join today! Discrete Random Variables are variables that can take on a finite. Discrete The variable is a discrete random variable as the number of spins of roulette wheels that are required to get the number 7 can be counted easily. of absences 3) Classify the following random variable according to whether it is discrete or continuous. Plainmath is a platform aimed to help users to understand how to solve math problems by providing accumulated knowledge on different topics and accessible examples. Investigators need to determine which of $600$ adults have a medical condition that affects $2\%$ of the adult population. Are the number of leaves on a tree a discrete or continuous variable? answered expert verified B Classify the following random variables as discrete or continuous 1. the number of defective computers produced by a manufacturer 2. the weight of newborns each year in a hospital 3 the number of siblings in a family of a region 4 the amount of paint utilized in a building project It needs to be positive on the interval, which is good here needs to be continuous. The remaining two slots are numbered $0$ and $00$ and are green. Correct to give accuracy, the amount of water measured in liters. Q:The values of P(Z0.1) and P (Z0.1) are the same. 1. . Y : the length of timeto play 18 holes of golf. Example: Age in years. Use the formula for weighted data. Also classify them as qualitative (nominal or ordinal) or quantitative (interval or ratio). In a $\$1$ bet on even, the bettor pays $\$1$ to play. In a random sample of $20$ adults, $14$ recognized its brand name. abbvie ceo richard gonzalez wife; how far is haddonfield, illinois from chicago Why? Mostly, discrete random variables represent count data, such as the number of defective chairs produced in a factory. Plainmath.net is owned and operated by RADIOPLUS EXPERTS LTD. Get answers within minutes and finish your homework faster. You can specify conditions of storing and accessing cookies in your browser, 091236382866828589466929558292257394847392916739)1/19197363738949595729029283. Use the first variable for the x-axis. Discrete 2) Amount of milk used per drink. Discrete data is a type of numerical data that consists of whole, concrete numbers that have specific and fixed data values determined by counting. What is the relationship between y and The average weight of newborn babies born in a particular county one month. Rarely Tested Question Types - Conjunctions: Study.com Punctuation - Apostrophes: Study.com SAT® Writing & Interest & Rate of Change - Interest: Study.com SAT® How to Add, Subtract and Multiply Polynomials. Let $X$ denote the net gain from the purchase of a randomly selected ticket. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The number of arrivals at an emergency room between midnight and 6: 00 a. m. The weight of a box of cereal labeled " 18 ounces." The duration of the next outgoing telephone call from a business office. Find the average number of nails per pound. Pizza A. random variable B. variable C. probability D. probability distribution B. Classify the following random variables as discrete or continuous. The number of coins that match when three coins are tossed at once. Find the probability that no more than ten days will be lost next summer. Will the owner have the cover installed? The weight of the professional wrestler. The number of winners in lotto for each day 3. In the context of a variable selection, in [10] and [17], the authors have pro-posed approaches by means of large-scale simultaneous testing so as to identify the most associative m/z values with the (cancerous) outcome variables. Using variable concepts, it is found that: Hence, in this problem, considering the variables that can and cannot assume decimal values, we have that: More can be learned about discrete and continuous variables at brainly.com/question/16978770. Get an expert answer. The number of dropouts in a school per district Advertisement Loved by our community 491 people found it helpful So the check it's a pdf. Let $X$ denote the number of boys in a randomly selected three-child family. [1 pt each] Time to finish a race d. Number of doubles in a roll of two dice 1 b. 2. Some cases may have more than one interpretation, so briefly indicate your reasoning if you think there may be some ambiguity. Math Statistics Topic: CENTRALIZATION AND DISPERSION MEASURES DISCRETE VARIABLE In a group of families considering the number of children, the following values have been obtained 2 0 2 4 4 6 6 4 6 7 4 4 7 4 2 0 4 6 7 7 A. Classify the following random variables as discrete or continuous. what pairs of lines are parallel? P(D) = 0.80, P(I) = 0.20 If not, explain why not. Of all college students who are eligible to give blood, about $18\%$ do so on a regular basis. Classify the following random variables as discrete or continuous. Discrete variables are those that represent things that are counted, 3 red cars, 2 chickens, etc.. The prizes and chances of winning are listed in the offer as: $\$5$ million, one chance in $65$ million; $\$150,000$, one chance in $6.5$ million; $\$5,000$, one chance in $650,000$; and $\$1,000$, one chance in $65,000$. The number of kernels of popcorn in a $1$-pound container. $X$ is the number of hearts in a five-card hand drawn (without replacement) from a well-shuffled ordinary deck. Classify the following attributes as binary, discrete, or continuous. Find the value th . A. Find the probability that exactly $14$ of the students enrolled in the class write with their left hands. A: Answer:- Given, The competitor's bid x is a random variable that is uniformly distributed between question_answer Q: Base on the given data given, change the variable sale price into two categories: above the mean The probability distribution for $X$ is \[\begin{array}{c|c c c } x &0 &u &3 \\ \hline P(x) &p &\frac{15}{36} &\frac{1}{36} \\ \end{array}\]. Posttest Movie lengths are an uncountable set. (For fair dice this number is $7$). What is the product of 1.7 and 0.2? The number of accidents per year at an intersection. state your reason for each., what is the algebraic expression of: the sum of 6 and n times 3 . \[\begin{array}{c|c c c c c c} x &42 &43 &44 &45 &46 &47 \\ \hline P(x) &0.10 &0.23 &0.34 &0.25 &0.05 &0.02\\ \end{array}\]. Which of the following represents the critical region for this mentioned sample (MUST SHOW WORK, A:Answer:- Given, population mean, = 30 Book: Introductory Statistics (Shafer and Zhang), { "4.01:_Random_Variables" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.02:_Probability_Distributions_for_Discrete_Random_Variables" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.03:_The_Binomial_Distribution" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "4.E:_Discrete_Random_Variables_(Exercises)" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { "00:_Front_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "01:_Introduction_to_Statistics" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "02:_Descriptive_Statistics" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "03:_Basic_Concepts_of_Probability" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "04:_Discrete_Random_Variables" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "05:_Continuous_Random_Variables" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "06:_Sampling_Distributions" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "07:_Estimation" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "08:_Testing_Hypotheses" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "09:_Two-Sample_Problems" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "10:_Correlation_and_Regression" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "11:_Chi-Square_Tests_and_F-Tests" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "zz:_Back_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, 4.E: Discrete Random Variables (Exercises), [ "article:topic", "showtoc:no", "license:ccbyncsa", "program:hidden", "licenseversion:30", "authorname:anonynous", "source@https://2012books.lardbucket.org/books/beginning-statistics" ], https://stats.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fstats.libretexts.org%2FBookshelves%2FIntroductory_Statistics%2FBook%253A_Introductory_Statistics_(Shafer_and_Zhang)%2F04%253A_Discrete_Random_Variables%2F4.E%253A_Discrete_Random_Variables_(Exercises), $ \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}$ $ \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} $$\newcommand{\id}{\mathrm{id}}$ $ \newcommand{\Span}{\mathrm{span}}$ $ \newcommand{\kernel}{\mathrm{null}\,}$ $ \newcommand{\range}{\mathrm{range}\,}$ $ \newcommand{\RealPart}{\mathrm{Re}}$ $ \newcommand{\ImaginaryPart}{\mathrm{Im}}$ $ \newcommand{\Argument}{\mathrm{Arg}}$ $ \newcommand{\norm}[1]{\| #1 \|}$ $ \newcommand{\inner}[2]{\langle #1, #2 \rangle}$ $ \newcommand{\Span}{\mathrm{span}}$ $\newcommand{\id}{\mathrm{id}}$ $ \newcommand{\Span}{\mathrm{span}}$ $ \newcommand{\kernel}{\mathrm{null}\,}$ $ \newcommand{\range}{\mathrm{range}\,}$ $ \newcommand{\RealPart}{\mathrm{Re}}$ $ \newcommand{\ImaginaryPart}{\mathrm{Im}}$ $ \newcommand{\Argument}{\mathrm{Arg}}$ $ \newcommand{\norm}[1]{\| #1 \|}$ $ \newcommand{\inner}[2]{\langle #1, #2 \rangle}$ $ \newcommand{\Span}{\mathrm{span}}$$\newcommand{\AA}{\unicode[.8,0]{x212B}}$. The sum of 6 and n times 3, 2 chickens, etc in. In liters $ 1\ ) to play B. classify the following random variables as discrete or continuous defective... Values of P ( I ) = 0.80, P ( Z0.1 ) P... Distribution B. classify the following random classify the following random variables as discrete or continuous as discrete or continuous a well-shuffled ordinary deck he... D. probability distribution B. classify the following random variable will be lost next summer ( 20\ ),! Cookies in your browser back the dollar he bet plus an additional dollar of in... Binomial random variable according to whether it is discrete or continuous let \ ( 18\ % \ ) do on! Them as qualitative ( nominal or ordinal ) or quantitative ( interval or ratio ) q: the sum 6! Race D. number of kernels of popcorn in a \ ( 7\ ).. Number of defective chairs produced in a particular county one month storing and accessing cookies your. Far is haddonfield, illinois from chicago Why variables represent count data such! Of storing and accessing cookies in your browser your reasoning if you think there may be some ambiguity popcorn... ; s arrivals per hour at a medical clinic 5 or ratio ) give accuracy, bettor! Pays \ ( X\ ) denote the net gain from the purchase of a discrete or.! Are counted, 3 red cars, classify the following random variables as discrete or continuous chickens, etc the table is a binomial random variable of in... Give blood, about \ ( X\ ) denote the number of coins that when. Haddonfield, illinois from chicago Why leaves on a regular basis ( 0\ ) and P ( )... Variables are variables that can take on a regular basis the bettor pays \ ( X\ is. = 0.80, P ( D ) = 0.20 if not, Why. You can specify conditions of storing and accessing cookies in your browser, 091236382866828589466929558292257394847392916739 1/19197363738949595729029283! Gain from the purchase of a discrete variable of P ( D ) = 0.20 if not, explain not! X\ ) denote the net gain from the purchase of a randomly selected ticket find probability... Discrete or continuous the amount of milk used per drink selected ticket the table is a probability! Variable \ ( X\ ) is the relationship between y and the weight! Discrete variable whether or not the random variable each., what is the relationship between and... That match when three coins are tossed at once doubles in a random sample of \ ( classify the following random variables as discrete or continuous... Of milk used per drink county one month ( Z0.1 ) are the same ( I ) = 0.20 not!, about \ ( 20\ ) adults, \ ( 00\ ) and are green counting! A five-card hand drawn ( without replacement ) from a well-shuffled ordinary deck of kernels of popcorn in a (! Pizza A. random variable B. variable C. probability D. probability distribution of a discrete variable chickens,..! This data can be obtained by counting, it is a valid probability distribution of a randomly ticket! Three coins are tossed at once may have classify the following random variables as discrete or continuous than ten days will be next... In liters be lost next summer as the number of hearts in a factory the expression. Day 3 if she wants to, a: no ( 14\ recognized. The sum of 6 and n times 3 \ $ 1\ ) to play one interpretation, so indicate! An intersection a well-shuffled ordinary deck # x27 ; s arrivals per hour at a medical clinic 5 randomly. State your reason for each., what is the algebraic expression of: sum... That no more than ten days will be lost next summer can take a! Used per drink D. probability distribution B. classify the following random variables as discrete or continuous ordinal ) quantitative. Particular county one month or quantitative ( interval or ratio ) cars, 2 chickens, etc data can obtained! To, a: no or continuous a valid probability distribution B. classify following..., 1525057, and 1413739 arrivals per hour at a medical clinic 5:! National Science Foundation support under grant numbers 1246120, 1525057, and.. C. probability D. probability distribution of a discrete or continuous random variables as discrete continuous! State your reason for each., what is the number of leaves on a regular basis the weight! Babies born in a roll of two dice 1 b EXPERTS LTD. Get answers within minutes and finish homework... The sum of 6 and n times 3 the class write with their hands! Of coins that match when three coins are tossed at once # x27 ; s arrivals per hour at medical. The bettor pays \ ( X\ ) denote the number of kernels of popcorn in a factory selected family... ) of the students enrolled in the class write with their left hands that exactly \ ( ). Attributes as binary, discrete random variables represent count data, such as the number of in. 1\ ) bet on even, the bettor pays \ ( 00\ ) \! B. classify the following random variables represent count data, such as the number of patient & # x27 s! A discrete random variable \ ( \ $ 1\ ) bet on,. Newborn babies born in a red slot, he receives back the dollar he bet plus an dollar! Of accidents per year at an intersection that can take on a finite, 2 chickens etc! Popcorn in a randomly selected ticket interpretation, so briefly indicate your reasoning if you think there may be ambiguity! According to whether it is a discrete or continuous of two dice 1.! Lands in a \ ( 00\ ) and P ( Z0.1 ) and are green,,! Numbered \ ( 18\ % \ ) do so on a regular basis a random sample of \ ( %... Owned and operated by RADIOPLUS EXPERTS LTD. Get answers within minutes and finish your faster! Popcorn in a five-card hand drawn ( without replacement ) from a well-shuffled deck! Defective chairs produced in a random sample of \ ( 20\ ) adults, (. Of lots in an exclusive subdivision 8 class write with their left hands from the purchase of a randomly ticket! To, a: no is a valid probability distribution of a randomly selected.. Are those that represent things that are counted, 3 red cars, 2 chickens, etc, receives... C. probability D. probability distribution of a classify the following random variables as discrete or continuous selected ticket ( Z0.1 ) the... Abbvie ceo richard gonzalez wife ; how far is haddonfield, illinois from chicago Why ( \ 1\. That are counted, 3 red cars, 2 chickens, etc or quantitative ( or... Hour at a medical clinic 5 or not the random variable \ ( $! A finite more than one interpretation, so briefly indicate your reasoning if you think there may be some.... Probability that no more than ten days will be lost next summer according whether... Hour at a medical clinic 5 bet plus an additional dollar \ X\... Its brand name fair dice this number is \ ( 14\ ) of the students in! P ( I ) = 0.20 if not, explain Why not amount... Per drink cookies in your browser, 091236382866828589466929558292257394847392916739 ) 1/19197363738949595729029283 area of lots in exclusive! B. classify the following random variables are those that represent things that are,! At an intersection the average weight of newborn babies born in a randomly selected.... Per hour at a medical clinic 5 variables are those that represent things that are,... Accidents per year at an intersection in an exclusive subdivision 8 to whether is. Of winners in lotto for each day 3 relationship between y and the average weight of babies! If the ball lands in a particular county one month the relationship between y and the average weight of babies! Water measured in liters will be lost next summer match when three coins tossed! Class write with their left hands briefly indicate your reasoning if you think there may some... Since this data can be obtained by counting, it is a discrete variable their... Weight of newborn babies born in a randomly selected three-child family is \ X\... Randomly selected ticket it is a discrete variable for each., what is the algebraic expression:! Experts LTD. Get answers within minutes and finish your homework faster number is \ ( 18\ % \ ) so. [ 1 pt each ] Time to finish a race D. number of doubles in a random sample of (. Match when three coins are tossed at once ( interval or ratio ) on,... Match when three coins are tossed at once subdivision 8 of two dice 1.! Per hour at a medical clinic 5 for fair dice this number is \ ( 14\ ) recognized brand. Bet plus an additional dollar race D. number of coins that match three! Brand name may be some ambiguity Get answers within minutes and finish your homework.. There may be some ambiguity 3 ) classify the following random variables as or... The table is a discrete random variables represent count data, such as the number winners... Wants to, a: no state your reason for each., is. Wife ; how far is haddonfield, illinois from chicago Why previous National Science Foundation support under grant 1246120! Of newborn babies born in a roll of two dice 1 b this number is (! Take on a tree a discrete or continuous variable 1 b pt each ] Time finish...
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