Question No. 1
A salesman is known to sell a product in 3 out of 5 attempts. While another
salesman in 2 out of 5 attempts. Find the probability that-
(a) No sales will happen.
(b) Either of them will succeed in selling the product.
Question No. 2
A hundred squash balls are tested by dropping from a height of 100 inches and measuring the height of the bounce. A ball is "fast" if it rises above 32 inches. The average height of bounce was 30 inches and the standard deviation was 3/4 inches. What is the chance of getting a "fast" standard ball?