port club, there are 70% males’ members and 30% females’ members. 60% of males play football and 40% of them play other sports. 30% of females play football and 70% play other sports. A. What is the percentage of all members who play football? B. What is the percentage of males’ members among all members who play football? C. What is the percentage of members who are males but don’t play fo

port club, there are 70% males’ members and 30% females’ members. 60% of males play football and 40% of them play other sports. 30% of females play football and 70% play other sports. A. What is the percentage of all members who play football? B. What is the percentage of males’ members among all members who play football? C. What is the percentage of members who are males but don’t play fo

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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What percentage of those who play guitar, also play piano, given the following information. 18 kids play piano, 24 play guitar, 7 play both, 13 play neither.
A researcher wants to know if hair color is associated with intelligence. To this end, the researcherrecruits 58 blonds and 59 brunettes. The researcher then assesses each person’s intelligence and comesup with the following results. In the blond group, there are 30 with below-average intelligence, 15 withaverage intelligence, and 13 with above-average intelligence. In the brunette group, there are 25 withbelow-average intelligence, 17 with average intelligence, and 17 with above-average intelligence. How many total participants were involved in the hair color and intelligence study? How many participants were below-average in intelligence in the hair color and intelligence study?
a. A statistics class is made up of 13 men and 26 women. What percentage of the class is male? b. A different class has 279 students, and 51.3% of them are men. How many men are in the class? c. A different class is made up of 54% women and has 27 women in it. What is the total number of students in the class? Question content area bottom Part 1 a. The statistics class is enter your response here % male. (Round to one decimal place as needed.) Part 2 b. There are enter your response here males in the class. (Round to the nearest whole number as needed.) Part 3 c. The class consists of enter your response here students. (Round to the nearest whole number as needed.)
The accuracy of a census report on a city in southern California was questioned by some government officials. A random sample of 1215 people living in the city was used to check the report, and the results are shown below.
3. A new radio station wants to know which type of music people in the area like the most. The station took a survey and displayed the results in a two-way frequency table. a. If the radio station wants to mainly play two of the categories, which two categories would result in the most listeners? Explain. b. Which two categories draw about the same number of women and men? Explain. Type of Music Pop Rock Jazz Country Alternative Total Survey Results Women 35 61 52 44 36 228 Gender Men 42 46 43 41 53 225 Total 77 107 95 85 89 453
Ancestry and Region. The U.S. Census Bureau collects information on the U.S. population by ancestry and region of residence and publishes the results in American Community Survey. According to that document, 18% of the population resides in the Northeast. a. If ancestry and region of residence are not associated, what percentage of Americans of Irish ancestry would reside in the Northeast? b. There are roughly 37 million Americans of Irish ancestry. If ancestry and region of residence are not associated, how many Americans of Irish ancestry would reside in the Northeast? c. There are, in fact, 9.25 million Americans of Irish ancestry who reside in the Northeast. Given this information and your answer to part (b), what can you conclude?
Can you just answer the last couple of the questions please
In a recent survey, 500 participants were asked about their favorite genre of movies. The results showed that 40% preferred action movies, 30% preferred comedy, 20% preferred drama, and the remaining participants preferred other genres. 1. How many participants preferred action movies? 2. How many participants preferred comedy movies? 3. How many participants preferred drama movies? 4. How many participants preferred other genres?
George believes the Art Club students at his school have an unfair advantage in being assigned to the art class they request. He asked 500 students at his school the following questions: "Are you in the Art Club?" and "Did you get the art class you requested?" The results are shown in the table below: Art Club Not in Art Club Total Received art class requested 100 265 365 Did not get art class requested 65 70 135 Total 165 335 500 Help George determine if all students at his school have an equal opportunity to get into the art class they requested. Show your work, and explain your process for determining the fairness of the class assignment process. K
1. A new brand of chocolate bar is being market tested. Four hundred of the new chocolate bars were given to consumers to try. The consumers were asked whether they liked or disliked the chocolate bar. You are given their responses below. A Response Frequency Liked 360 Disliked 40 Total 400
Which Is More Important: Grades, Sports, or Popularity?478 middle school (grades 4 to 6) students from three school districts in Michigan were asked whether good grades, athletic ability, or popularity was most important to them.1 The results are shown below, broken down by gender: Grades Sports Popular Boy 117 60 50 Girl 130 30 91 Do middle school boys and girls have different priorities regarding grades, sports, and popularity? Calculate a test statistic, find a p-value, and answer the question.1Chase, M. and Dummer, G., “The Role of Sports as a Social Determinant for Children,” Research Quarterly for Exercise and Sport, 1992; 63; 418-424. Calculate the chi-square statistic and the p-value.Round your answer for the chi-square statistic to one decimal place, and the p-value to four decimal places.χ2= ? p-value = ?
Each accountant at a large accounting firm was classified according to accountant level (junior or senior) and method of transportation to work (walk, bus, drive alone, or carpool). The responses of the 320 accountants at the firm are summarized in the table. Junior Senior Total Walk 25 3 28 Bus 87 12 99 Drive alone 96 25 121 Carpool 52 20 72 Total 260 60 320 What proportion of the accountants at the firm are at the senior level and carpool to work? 20 (A) 60 20 (B) 72 (C) 20 320 112 (D) 320 132 (E) 320