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Regents Questions of Independence 1) Given events A and B, such that P(A) = 0.6, P(B) = 0.5, and P(A U B) = 0.8, determine whether A and B are independent or dependent. 2) The results of a poll of 200 students are shown in the table to the right. For this group of students, do these data suggest that gender and preferred music styles are independent of each other? Justify your answer. Preferred Music Style Techno Rap Country Female 54 25 27 Male 36 40 18

Regents Questions of Independence 1) Given events A and B, such that P(A) = 0.6, P(B) = 0.5, and P(A U B) = 0.8, determine whether A and B are independent or dependent. 2) The results of a poll of 200 students are shown in the table to the right. For this group of students, do these data suggest that gender and preferred music styles are independent of each other? Justify your answer. Preferred Music Style Techno Rap Country Female 54 25 27 Male 36 40 18

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Regents Questions of Independence 1) Given events A and B, such that P(A) = 0.6, P(B) = 0.5, and P(A U B) = 0.8, determine whether A and B are independent or dependent. 2) The results of a poll of 200 students are shown in the table to the right. For this group of students, do these data suggest that gender and preferred music styles are independent of each other? Justify your answer. Preferred Music Style Techno Rap Country Female 54 25 27 Male 36 40 18
Transcribed Image Text:Regents Questions of Independence 1) Given events A and B, such that P(A) = 0.6, P(B) = 0.5, and P(A U B) = 0.8, determine whether A and B are independent or dependent. 2) The results of a poll of 200 students are shown in the table to the right. For this group of students, do these data suggest that gender and preferred music styles are independent of each other? Justify your answer. Preferred Music Style Techno Rap Country Female 54 25 27 Male 36 40 18
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