Select the correct answer

The sales manager at Melbourne Metropolitan Motors compiled the following discrete dealership. probability distribution. In this distribution x represents the number of cars sold per day at her X P(X 0 0.25 0.50 2 0.25 The mean (average) value of x is Select one: O a. 1.0 Ob. 0 O c. 1.5 O d. 0.5Suppose a population has a mean of 870 and a variance of 1600. If a random sample is size 64 is drawn from the population, the probability that the sample mean is between 860 and 875 IS DA. 0.5899 B. 0.6826 C. 0.9544 D. 0.8185