Exercise 18 SKILLS PROBLEM-SOLVING, INTERPRETATION I The random variable X- B(9, 0.2). Find: b P(X< 3) a PX<4) e PX> 2) d P(X-1)

The question was meant to be x to the 7 halves

A clock manufacturer's fixed costs per month are $8000. The unit cost for each clock is $15. Find the number of clocks made during a month in which the total cost was $38,000. Use the formula T = UN + F, where T is the total cost, U is the cost per unit, N is the number of units made, and F is the fixed costs.