b) The following table shows the results of a sample survey carried out by a fast-food restaurant to determine whether persons had noticed an improvement in its service in the last month Voting Results Sex Improvement Seen No No improvement Opinion Male 25 21 34 Female 16 38 16 b) Determine the probability that the patron was a female or thought that there was no improvement in the service. [3] c) Given that the patron thought there was an improvement, what is the probability that the patron was a male? [3]
b) The following table shows the results of a sample survey carried out by a fast-food restaurant to determine whether persons had noticed an improvement in its service in the last month Voting Results Sex Improvement Seen No No improvement Opinion Male 25 21 34 Female 16 38 16 b) Determine the probability that the patron was a female or thought that there was no improvement in the service. [3] c) Given that the patron thought there was an improvement, what is the probability that the patron was a male? [3]
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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