Suppose that X is a discrete random variable with possible values {1, 2, ...}, and probability mass function. pX(k) = c k(k+1) with some constant c > 0. (a) What is the value of c? Hint: 1 k(k+1) = 1 k − 1 k+1 . (b) Find E(X). Hint: Example D.5 could be helpful.

idk

step-by-step explanation: i just don't

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.

answer: 3.26019516

step-by-step explanation: