Brett asked his classmates in his 1st period whether they had siblings and whether they had a pet. He recorded the information in the two-way table shown, including his own information. Suppose a student from Brett's 1st period is chosen at random. Define events X : has a sibling and Y : has a pet. a. Find P(X) and explain what this means in words. b. Find P(Y^C) and explain what this means in words. c. Find P (X or Y) and explain what this means in words. d. Are the events X and Y mutually exclusive? Explain.

Brett asked his classmates in his 1st period whether they had siblings and whether they had a pet. He recorded the information in the two-way table shown, including his own information. Suppose a student from Brett's 1st period is chosen at random. Define events X : has a sibling and Y : has a pet. a. Find P(X) and explain what this means in words. b. Find P(Y^C) and explain what this means in words. c. Find P (X or Y) and explain what this means in words. d. Are the events X and Y mutually exclusive? Explain.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.9: Independent And Dependent Events

Problem 1E

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