Computing conditional probability using a sample space Eight

Last updated: 8/7/2022

Computing conditional probability using a sample space Eight balls numbered from 1 to 8 are placed in a bag. Some are white and some are grey, as shown below. Answer the following questions. Write each answer as a fraction. A ball will be randomly selected. (a) What is the probability that the selected ball is grey? (b) What is the probability that the selected ball is grey, given that an even numbered ball is selected?