rashida

Imagine that the probability of answering this question correctly is only p = .4, and on tests in which it is used, only 8 people attempt it. On what proportion of such tests will fewer than 3 people answer the question correctly?

Age of Rahul's father is 3 times Rahul's age now.After 15 years he will be twice the age of Rahul. Find their present age.

The difference between two numbers is 108 less than their sum.If the larger number is twice the smaller number,find the difference between the two numbers.

Imagine that the probability of answering this question correctly is only p = .4, and on tests in which it is used, only 8 people attempt it. On what proportion of such tests will fewer than 3 people answer the question correctly?