Assume a binomial probability distribution withn=50 and I = .25. Compute the following: a. The mean and standard deviation of the random variable. b. The probability that x is 15 or more. c. The probability that x is 10 or less.

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60