Practice A school wanted to understand if there was an association between grade level and participation in a sport. They surveyed a group that consisted of 9th grade and 12th grade students and found the following results: (a) Find the probability, to the nearest hundredth, that a student picked at random from this survey plays a sport. 9th Grade Sport 34 No Sport 20 12th Grade 30 38 (b) Find the probability, to the nearest hundredth, that a person plays a sport given they are in 9th grade. (c) Is playing a sport independent of the grade a student is in? Explain your yes or no answer. The results of a poll of 200 students are shown in the table below: Preferred Music Style Techno Rap Country Female 54 25 27 Male 36 40 18 For this group of students, do these data suggest that gender and preferred music styles are independent of each other? Justify your answer. Regents Review Questions - Unit 10 Probability and Statistics 35 The guidance department has reported that of the senior class, 2.3% are members of key club, K, 8.6% are enrolled in AP Physics, P, and 1.9% are in both. Determine the probability of P given K, to the nearest tenth of a percent. The principal would like a basic interpretation of these results. Write a statement relating your calculated probabilities to student enrollment in the given situation.
Practice A school wanted to understand if there was an association between grade level and participation in a sport. They surveyed a group that consisted of 9th grade and 12th grade students and found the following results: (a) Find the probability, to the nearest hundredth, that a student picked at random from this survey plays a sport. 9th Grade Sport 34 No Sport 20 12th Grade 30 38 (b) Find the probability, to the nearest hundredth, that a person plays a sport given they are in 9th grade. (c) Is playing a sport independent of the grade a student is in? Explain your yes or no answer. The results of a poll of 200 students are shown in the table below: Preferred Music Style Techno Rap Country Female 54 25 27 Male 36 40 18 For this group of students, do these data suggest that gender and preferred music styles are independent of each other? Justify your answer. Regents Review Questions - Unit 10 Probability and Statistics 35 The guidance department has reported that of the senior class, 2.3% are members of key club, K, 8.6% are enrolled in AP Physics, P, and 1.9% are in both. Determine the probability of P given K, to the nearest tenth of a percent. The principal would like a basic interpretation of these results. Write a statement relating your calculated probabilities to student enrollment in the given situation.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Transcribed Image Text:Practice
A school wanted to understand if there was an association between grade level and participation in a sport.
They surveyed a group that consisted of 9th grade and 12th grade students and found the following results:
(a) Find the probability, to the nearest hundredth, that
a student picked at random from this survey plays
a sport.
9th Grade
Sport
34
No Sport
20
12th Grade
30
38
(b) Find the probability, to the nearest hundredth, that a person plays a sport given they are in 9th grade.
(c) Is playing a sport independent of the grade a student is in? Explain your yes or no answer.
The results of a poll of 200 students are shown in the table below:
Preferred Music Style
Techno
Rap Country
Female
54
25
27
Male
36
40
18
For this group of students, do these data suggest that gender and preferred music styles are independent of each
other? Justify your answer.
Regents Review Questions - Unit 10 Probability and Statistics
35 The guidance department has reported that of the senior class, 2.3% are members of key club, K,
8.6% are enrolled in AP Physics, P, and 1.9% are in both.
Determine the probability of P given K, to the nearest tenth of a percent.
The principal would like a basic interpretation of these results. Write a statement relating your
calculated probabilities to student enrollment in the given situation.
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