## Elementary Statistics (12th Edition)

a) Proportion correct, probability 0, 16/25 0.5, 8/25 1, 1/25 b) $0.2$ c) Yes
a) First, we create the table: Proportion correct, probability 0, 16/25 0.5, 8/25 1, 1/25 b) We comput the mean: $mean=(0.5)(8/25)+(1/25)=0.2$ c) Yes, it does. As is the case in this problem and as always is the case, the mean of the sample distribution of the proportion is equal to the population proportion no matter what.