Chapter 10, Problem 2PT3

To determine

To find: The probability that Dandy wins or the conditions of track are good.

Answer to Problem 2PT3

The probability cannot be determined using the provided information.

Explanation of Solution

Given:

The probability that horse race is won by Dandy given that the condition of track is good is 0.60.

The probability that conditions of track is good is 0.85.

Formula used:

Following formula is used to compute the or probability:

  $P\left(X\text{ or }Y\right)=P\left(X\right)+P\left(Y\right)-P\left(X\text{ and }Y\right)$

Calculation:

Here, to compute the probability that Dandy wins or the conditions of track are good more information about the probabilities is needed. So, the more information is needed here.

Hence, the correct option is (e).