Which statement implies that a and b are independent events? a. p(b|a) = p(b a) b. p(b|a) = p(b) p(a) c. p(b|a) = p(a) d. p(b|a) = p(b)

The events are independent if and only if . Under this condition, we have conditional probabilities

so the answer is D.

The median is also the number that is halfway into the set. to find the median, the data should be arranged in order from least to greatest. if there is an even number of items in the data set, then the median is found by taking the mean (average) of the two middlemost numbers