Which of the following Is an example of a discrete random varlable? O A. The percentage of people living belowthe poverty level in Boston. O B. The amount of time it takes fora worker to complete a complex task.

Q: An education researcher claims that at most 8% of working college students are employed as teachers…

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Q: If a sample has a mean of X = 32 with s = 7 and n = 54, find (X- X)2 %3D %3D

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Q: A restaurant manager wants to know if one of the three specials on the menu (baked fish, roast beef,…

A: Solution: The given data is

Q: An education researcher claims that 62% of college students work year-round. In a random sample of…

A: Given information Hypotheses is  Ho : p = 0.62 Ha : p =/0.62 X = 186 n = 300 Phat = x/n = 186/300 =…

Q: Which of the following is a continuous random variable? O Speed of an airplane O The number of…

A: A continuous random variable is which can take values between a permitted range. Example: Height,…

Q: find the missing element in the sample space S=(x|x^3+2x^2-5x-6=0) where S={-3,-1,_}

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Q: Five-digit random numbers are used to simulate scores on each hole in an 18-hole round of golf. The…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: If you generate 1000 random numbers in Excel using the "=RAND()" formula, what can you say about the…

A: Measure of central tendency is used to estimate the summary of the data set. Most commonly used…

Q: An analysis of variance produces SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15. For…

A: MSb =30/2 =15 MSw=60/15 = 4 F-ratio= MSb / MSw =15/4 =3.75

Q: The sum of 8 sample values is (21 xi) 0 and the sum of the squares of the observationa is (E=1 x?)…

A: Given information: ∑xi=600∑xi2=45258 n=8

Q: Which of the following is an example of a discrete random variable? O a. The amount of time it takes…

A: There are two types of random variables 1) discrete random variable and 2) continuous random…

Q: Identify whether each of the following is an example of discrete or continuous random variable. 1.…

A: Here we have given the variables, we have to identify whether the variable is discrete or…

Q: Which of the following is a left-tailed test? O Ho: µ = 184, H1: µ 76 O Ho: H = 67, H1: # 67

A: Alternative Hypothesis: The alternative hypothesis is the complementary statement to the null…

Q: Find the missing element in the sample space S = {x|x³x² - 17x - 15 = 0} where S = {-3,-1,__}.

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Q: As the supervisor in Programming of X and Y Corporation, you found out that the probability of…

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Q: Determine if each of the following situations illustrates a continuous random variable or not. a.…

A: a) The weight can be any number. If we use a good weight machine then we can get the exact value of…

Q: A sequence is given: Y Y YN NYΝNΥΥYNNΝNYΥNY YN. Calculate the test statistic to conduct a hypothesis…

A: The given sequence is, YYYNNYNNYYYNNNYYNYYN The sequence has 20 observations. Here,  n1=number of…

Q: Which Is a discrete random varlable? )x = "welght of the microprocessor Inside your computer" DY =…

A: In statistics, the continuous variables are variables whose values can be given by an interval, they…

Q: Which of the following is an example of a discrete random variable? O a. The number of people eating…

A: Discrete random variable: A variable which takes values in integer known as Discrete random…

Q: Use the following information to answer question. n=6,Σχ= 16, Σx2 - 98. The variance S2 is Select…

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Q: Days before a presidential election, an article based on a nationwide random sample of registered…

A: Given Information:  Percentage of registered voters = 52% ± 3%

Q: SS = 749.5 %3D SS = 830 %3D a. Use a one-tailed test with a = .05 to determine whether these data…

A: Given Data : we need to calculate standard deviations for both the samples , where the SS are given…

Q: A research center claims that 30% of adults in a certain country would travel into space on a…

A: One - sample proportion test :  To test : H0 : P = P0            against  H1 : P ≠ P0  or P < P0…

Q: The following dotplot shows the cost of electricity during a summer month for a random sample of 50…

A: Introduction - mean =sum of observations total number of observations Standard deviation…

Q: Which of the following is(are) TRUE if the coefficient of determination between the response and the…

A: Here use basic of coefficient of determination and regression line

Q: A bicycle safety organization claims that fatal bicycle accidents are uniformly distributed…

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Q: A research center claims that 26​% of adults in a certain country would travel into space on a…

A: Solution-: Given: n=700,p^=0.28,P0=0.26,α=0.10 We find, (a) Hypothesis (b) Test statistic =? (c)…

Q: It is a function that assigns a real number to each outcome in the sample space of a random…

A: We have given that an statement about to real number to each outcome in the sample space of a random…

Q: For numbers 7 and 8: The seedlings of a particular type of tree are randomly dispersed in a large…

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Q: Which of the following instruments can be used to find the values of continuous random variable?…

A: hERE gIVEN 4 iNSTRUMENTS WEIGHING SCALE,CLICKER,TALLY SHEET,TAPE MEASURE

Q: 3. The adjoining table of ten 34 96 61 85 49 undom numbers of two digits each is provided to the…

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Q: The probability of the sample space S is always less than 1. Select one: O True O False

A: The answer is : False. Explanation: A sample space is a collection of all possible outcomes of a…

Q: FIl in the cells of a copy of the following table so that the two variables are Independent. Do the…

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Q: A vending machine company wants to check three of its machines to determine if they are properly…

A: Hypothesis: The null and alternative hypotheses are given below: H0: There is no difference in the…

Q: The e company rescardhers have found that head nidths are nomally. distribated with a mean of 6.9…

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Q: You are conducting a multinomial hypothesis test (a 0.05) for the claim that all 5 categories are…

A: Given Information: Significance level α=0.05 Number of categories is 5 Category Observed…

Q: A bicycle safety organization claims that fatal bicycle accidents are uniformly distributed…

A: (a) The claim is that fatal bicycle accidents are uniformly distributed throughout the week. The…

Q: Which of the following is a two-tailed test? O Ho: µ = 89, H1:4 84 %3D O Họ: µ = 54, H1:4#54

A: Given,H0:μ=89 , H1:μ<89H0:μ=84 , H1:μ>84H0:μ=54 , H1:μ≠54

Q: A biased die is thrown thirty times and the number of sixes seen is eight. If the dic is thrown a…

A: Given No of trails (n)=12 Out of 30 rolls we observe 8 sixes

Q: Below we have given the notation used for the four sums of squares in the analysis of variance for a…

A: (a)The SSBL represents the block sum of the squares.The source of variation for the block sum of…

Q: Q3.a. Find out the variance of first n natural numbers.

A: Since multiple questions are given first part is answered step by step explanation. Kindly repost to…

Q: Which of the following approximation is good if X is a binomial random variable ? n= 50, p= 0.03…

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Q: A biased die is thrown thirty times and the number sixes seen is eight. If the die is thrown a…

A: List of formulae : Expected value : E(X) = np  Variance : Var(X) = np(1-p)

Q: The following data shows the number of different type of students that have received distinction or…

A: The provided contingency table is:   Grade Course Distinction Pass Fail…

Q: For a normally distributed population with a mean of 50 and a SD of 10, we would expect 95% of the…

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Q: A research center claims that 31% of adults in a certain country would travel into space on a…

A: According to the research center's claim, the hypothesis are given as : Ho : P=0.31H1 : P≠0.31 This…

Q: If Xhas the binomial distribution with μ=2.4 and σ=1.2, then P(X=2) is:

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Q: Which of the following is a discrete random variable O length of time spent watching movies O volume…

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Q: If z Is a standard normal varlable, find the probability. The probability that z lies between 2.66…

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.