Probability of a day with ran P(rain)= 0.25 Probability of no-rain or dry is P(dry)=0.75 a) Assuming the weather on different days is independent, calculate the probability of observing two rainy days followed by 25 days of which at least 22 (in any particular order) are dry. b) It has been observed that delays are ore likely to occur at a junction on wet days than dry days. This tendency is expressed by conditional probabilities: P(delay|wet)= 0.4 P(delay|dry)= 0.1 The probability of the next day being wet is P(wet)=0.7. What is the corresponding probability of a delay at the junction?

Probability of a day with ran P(rain)= 0.25 Probability of no-rain or dry is P(dry)=0.75 a) Assuming the weather on different days is independent, calculate the probability of observing two rainy days followed by 25 days of which at least 22 (in any particular order) are dry. b) It has been observed that delays are ore likely to occur at a junction on wet days than dry days. This tendency is expressed by conditional probabilities: P(delay|wet)= 0.4 P(delay|dry)= 0.1 The probability of the next day being wet is P(wet)=0.7. What is the corresponding probability of a delay at the junction?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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