I.Determine the possible values of the random variables in thegiven word problems.1. A family has three children. Let Y represent the number ofmales. What are the possible values of Y?2. There are 10 students in a cafeteria. If X denotes the number ofmales, what are the possible values of X?

we have to find possible values of the random variable for given problems 1) family has three…

Answered: I. Determine the possible values of the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Employers want to know which days of the week employees are absent in a five-day workweek. Most employers would like to believe that employees are absent equally during the week. Suppose a random sample of managers were asked which day of the week they had the highest number of employee absences. The results were distributed as follows: The number of Absences on Monday was 17 The number of Absences on Tuesday was 17 The number of Absences on Wednesday was 4 The number of Absences on Thursday was 6 The number of Absences on Friday was 11 What is the Test Statistic to test the Hull Hypothesis that The absent days occur with equal frequencies (that is, they fit a uniform distribution) against the alternative Hypothesis that the absent days occur with unequal frequencies (that is, they do not fit a uniform distribution)?
A random sample of 100 women is selected and their average salary is $65,123. What conclusion can you make?
List all the possible outcomes and determine the values of the random variable in each of the following situations. Use a table for your answers. c.) Three consuls were selected at random one after the other in a meeting of consuls which was attended by 4 Australians and 2 Americans. Let G be number of Australians.
Assume that the box contains 5 balls: 2 yellow, 1 white, and 2 green. Balls are drawn in succession without replacement, and their colors are noted until both a yellow and a white ball have been drawn. 1. Which of the following is not a valid outcome for this experiment? A. WGY B. GGWY C. YGYW D. YWG 2. How many outcomes are there in the sample space?
The tickets in a box have an average value of 75, and the SD is 10. Twenty-five draws are made at random with replacement from this box. Find the chance that the average of the draws will be in the range 65 to 85.
1. TOSSING THREE COINS Suppose three coins are tossed. Let Y be the random variable representing the number of tails that turn up. Find the values of the random variable Y. Complete the table below. POSSIBLE OUTCOMES VALUE OF THE RANDOM VARIABLE Y (Number of Tails)
As part of a statistics project, a teacher brings a bag of marbles containing 700 white marbles and 300 red marbles. She asks her students to determine how many red marbles are in the bag without counting them.A student randomly draws 100 marbles from the bag. Of the 100 marbles, 33 are red.The target population consists of The 100 marbles drawn by the student The 1000 marbles in the bag None of the above The 33 red marbles drawn by the student The 300 red marbles in the bag The sample consists of The 1000 marbles in the bag The 100 marbles drawn by the student The 33 red marbles drawn by the student None of the above The 300 red marbles in the bag Based on the sample, the student would estimate that ------ marbles in the bag were red.
Which of the following is the domain of a random variable? Choose the correct answer: a. set of whole numbers b. sample space c. set of real numbers d. subset of the outcomes of the experiment
. In an organization consisting of 5 women and 10 men, a committee of four individuals is to be selected at random from the 15 people. Find the distribution of the random variable, X = Number of women on the committee.
Choose the letter that corresponds to the correct answer Which of the following is an example of dicrete variables? a. Weight of students b. Number of purple marble in the basket I. с. Distance travelled between tricycles d. Height of the students in a certain class I. Which are the possible values of the random variable for the number of heads when you toss two coins а. 0,1,2,3 b. 1,2,3 с. 0,1 d. 0,1,2 II. Which of the following statement describe a discrete random variable? a. The average increase in height of baby each year b. The number of avocado produced by an avocado tree each year c. The length of span of a 10 months baby d. The average increase in weight of baby each year Which of the following will yield a higher interest? a. Investing in a bank that offers a simple interest rate of 10% annually for 2 years b. Investing in a cooperative that offers an interest rate of 10% compounding annually for IV. 2 years c. Both A and B d. Saving money in a piggy bank for 2 years Which of…
67% of LaGuardia students are female. A random sample of 6 students is to be selected. Let the random variable X be the number of female students in a sample. a. What is the probability that out of 6 randomly selected students at most 2 are male? b. Find the average number of female students per sample if a large number of random samples of 20 students were selected.
C. 10. Four hundred accidents that occurred on a Saturday night were analyzed. The number of vehicles involved and whether alcohol played a role in the accident were recorded. The results are shown below: Did alcohol play a role? Yes No Totals Number of Vehicles Involved 3 or more 1 55 29 84 a. Involved alcohol or a single car? 2 99 178 277 b. Involved 3 or more vehicles or involved alcohol? 16 23 39 Suppose that one of the 400 accidents is chosen at random. What is the probability that the accident: Involved 3 or more vehicles given alcohol was involved? Totals 170 230 400

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I. Determine the possible values of the random variables in the given word problems. 1. A family has three children. Let Y represent the number of males. What are the possible values of Y? 2. There are 10 students in a cafeteria. If X denotes the number of males, what are the possible values of X?