The probability that John, a cricketer will strike a ball for 6 in a game is 0.4. Assume that in a particular game he only faces 12 deliveries (balls). Determine that the number of deliveries he
will hit is:
(a) exactly seven sixes [1]
(b) at most one six [3]
(c) between 3 and 6 sixes [3]
(d) How many balls do we expect him to hit for six

Which of the following is the result of expanding

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons