A local anime fan club surveyed
a. How many of the club members watched exactly one of the shows?
b. How many of the club members watched all three shows?
c. How many of the club members watched none of the three shows?
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Chapter 2 Solutions
MATHEMATICS A PRACT ODYSSEY -WEBASSIGN
- A hospital cafeteria offers a fixed-price lunch consisting of a main course, a dessert and a drink. If there are four main courses, three desserts, and six drinks to pick from, in how many ways can a customer select a meal consisting of one choice from each category?arrow_forwardIf a man has 4 sweaters and 5 pairs of slacks, how many different outfit can he wear?arrow_forwardAnswer the following questions. 5. What is the term for the arrangement that selects r objects from a set of ii objects when the order of the r objects is not important? What is the formula for calculating the number of possible outcomes for this type of arrangement?arrow_forward
- A poll tracks the favorite sport of Americans who follow at least one sport. Results of the poll show that professional football is the favorite sport of 33% of Americans who follow at least one sport, followed by baseball at 15%, men's college football at 10%, auto racing at 6%, men's professional basketball at 5%, and ice hockey at 5%, with other sport at 26%. Consider a survey in which 344 college undergraduates who follow at least one sport were asked to identify their favorite sport produced the following results: Professional Football 112 Baseball 37 Men's College Football 48 Auto Racing 12 Men's Professional Basketball 7 Ice Hockey 18 Find the p-value. (Round your answer to four decimal places.) p-value = Other Sports 110 Do college undergraduate students differ from the general public with regard to their favorite sports? Use α = 0.05. State the null and alternative hypotheses. OH: The population proportion concerning favorite sport is the same for undergraduate students and…arrow_forwardFor the purposes of a marketing research, a survey of 1000 women is conducted in a town. The results show that 52 % liked watching comedies, 45% liked watching fantasy movies and 60% liked watching romantic movies. In addition, 25% liked watching comedy and fantasy both, 28% liked watching romantic and fantasy both and 30% liked watching comedy and romantic movies both. 6% liked watching none of these movie genres. Find The number of women who like watching at least two of the given genresarrow_forwardA local country club has a membership of 600 and operates facilities that include an 18-hole championship golf course and 12 tennis courts. Before deciding whether to accept new members, the club president would like to know how many members regularly use each facility. A survey of the membership indicates that 60% regularly use the golf course, 48% regularly use the tennis courts, and 10% use neither of these facilities regularly. What percentage of the 600 use at least one of the golf or tennis facilities? Select one: A. 98% B. 90% C. 18% D. 10%arrow_forward
- A professor divided the students in her business class into three groups: those who have never taken a statistics class, those who have taken only one semester of a statistics class, and those who have taken two or more semesters of statistics. The professor randomly assigns students to groups of three to work on a project for the course. 65% of the students have never taken a statistics class, 15% have taken only one semester of a statistics class, and the rest have taken two or more semesters of statistics. Round your answers to three decimal places. a. What is the probability that the first groupmate you meet has studied at least two semesters of statistics? b. What is the probability that the first groupmate you meet has studied some statistics? c. What is the probability that neither of your two groupmates has studied any statistics? d. What is the probability that your two groupmates have studied at least one semester of statistics? e. What is the probability that at least one…arrow_forwardAnswer all the questions: 1. Taehyung is joining the same flight as Namjoon and Yoongi. In his drawer, there are 7 identical pairs of red socks, 5 identical pairs of white socks, and 4 identical pairs of striped socks. While in a hurry, he grabbed two individual socks from his drawer randomly. In how many ways will Taehyung get unmatched socks?arrow_forwardOne common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C, 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a 3-creditcourse, a B in each of two2-creditcourses, a C in a 4-credit course, and a D in a 3-3-credit course?arrow_forward
- A researcher surveys 200 randomly selected college students to determine the number of education majors and mathematics majors. 16% of the students surveyed are education majors and 6% of the students surveyed are mathematics majors. 2% of the students are both education majors and mathematics majors. What percentage of the students surveyed are education majors or mathematics majors?arrow_forwardA survey posted on the web in a recent month asked respondents to provide a satisfaction rating regarding a certain Democratic politician's policies and their political affiliation. Of 202 respondents, 83 were Democrats. A total of 107 respondents thought the current politician was doing better than his predecessor. A total of 73 respondents were both Democratic and voted that he was doing better. How many respondents were not Democrats and did not think he was doing better? There were respondents who were not Democrats and did not think he was doing better. (Type a whole number.) Ask my instructor Pamums 754 10 20 = 4 "' 101 √₁ Vi 1, 30 (0,0) More Clear all 43°F Cloudy Check answer 40004 7:41 AM 3/19/2023 TARK X Larrow_forwardA student claims that he can correctly identify whether a person is a business major or an agriculture major by the way the person dresses. Suppose in actuality that if someone is a business major, he can correctly identify that person as a business major 87% of the time. When a person is an agriculture major, the student will incorrectly identify that person as a business major 16% of the time. Presented with one person and asked to identify the major of this person (who is either a business or an agriculture major), he considers this to be a hypothesis test with the null hypothesis being that the person is a business major and the alternative that the person is an agriculture major. What would be a Type I error? Saying that the person is a business major when in fact the person is an agriculture major. Saying that the person is an agriculture major when in fact the person is an agriculture major. Saying that the person is an agriculture major when in…arrow_forward
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