1. Tom and Jerry are brothers in a math class. The teacher estimates that for each class, the probabilities that Tom and Jerry come late are 10% and 16% respectively. And the probability that they are both late is 5%. Assume the teacher's estimation is correct, find the following probabilities. (a) [12 points] In a particular class, what is the probability that both Tom and Jerry are present on time? (b) [12 points] In a particular class, if it's known that Tom is late, what is the probability that Jerry is also late?
1. Tom and Jerry are brothers in a math class. The teacher estimates that for each class, the probabilities that Tom and Jerry come late are 10% and 16% respectively. And the probability that they are both late is 5%. Assume the teacher's estimation is correct, find the following probabilities. (a) [12 points] In a particular class, what is the probability that both Tom and Jerry are present on time? (b) [12 points] In a particular class, if it's known that Tom is late, what is the probability that Jerry is also late?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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