4 children. He makes a fast, wrong estimate of the probability of various mixes of boys and girls amongQUESTION 3. Mr. Fastwrong is working for the census department and he is counting families that havethe families. His assistant, Ms. Slowright, analyzes the issue and corrects his work. Fill her corrections ofhis wrong guesses into the table below.Number of boys amongthe 4 children10432Number of girls amongthe 4 children0124Use fractions (not percents) in your answers.Mr. Fastwrong'sestimate of the fractionof families having thisdistribution of boysand girls1/51/51/51/51/5Ms. Slowright'sestimate of the fractionof families having thisdistribution of boysand girls

Boys girls Mr. Fastwrong's estimation 4 0 1/5 3 1 1/5 2 2 1/5 1 3 1/5 0 4 1/5

Answered: 4 children. He makes a fast, wrong…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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4. According to the South Carolina Department of Mental Health web site, for every 200 U.S. women, the average number who suffer from anorexia is one. Out of a randomly chosen group of 600 U.S. women determine the following. How many are expected to suffer from anorexia? Find the probability that no one suffers from anorexia. Find the probability that more than four suffer from anorexia.
9. If a family has three children, what is the probability that there are two boys and one girl (in any order)? Group of answer choices 33.3% 37.5% 12.5% 1.5%
Suppose that you would like to determine if the use of the newest Sweeney education intervention will improve students understanding of statistics better than the use of no intervention. In order to do this, you select two groups of students at random from students who need to take Statistics: a group given the intervention and another group that is given the standard statistics class. At the end of the course, the students were given an exam and the exam scores were compared. Group 1: Students given the interventionGroup 2: Students in the standard Statistics class Use this information to answer the following questions:a. What test should you run and why?b. What is the null hypothesis? What is the alternative hypothesis?c. What requirements would have to be met to insure that you could run the test?
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Hello Sir.Good Evening. I have a question in my home work related Statistics lesson. The following below is my question.Please advise and Thank you so much. "A population consists of N elements X1... X2... X2... to investigate the characteristics of the population, a randomly selected sample of n elements, X1... X2... X3... .How many samples can be obtained from the population if N=3, n= 2 ? if N=10, and n=3 ?"
4. 3. Victoria went to the store and bought 12 pieces of chocolates. She bought 5 pieces of dark chocolate and the rest were milk chocolate. If Victoria randomly picks a piece of chocolate without looking, what is the probability that she will pick a piece of milk chocolate? Write the probability as a percent and round to the nearest percent. Robert Navugs put all of the letters from his name in a bucket. If he randomly chooses a letter from the bucket without looking, what is the probability that he will choose a vowel? Write the probability as a fraction, decimal, and percent.
A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n=30 participants to watch the commercial. First, everyone was givien a survey to determine their attitudes toward the company. Then, everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the comapny after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. What statistical test should they use?
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2. A psychology class consists of 14 males and 36 females. If the professor selects names from the class list using random sampling, a. What is the probability that the first student selected will be a female? 8. I b. If a random sample of n = 3 stu dents is selected and the first two are both females, what is the prob- ability that the third student selected will be a male? CRE NA
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