The following table gives the probability distribution of the number of microwaves sold on a given day at a department store. Microwaves sold 0 1 2 3 4 5 6 Probability 0.05 0.14 0.20 0.25 0.21 0.10 0.05 Calculate the mean and standard deviation for this probability distribution. Round your answers to two decimal places, if required. Mean 2.3 Standard deviation 1.50