Question

Suppose 10,000 tickets are sold in a lottery each for Re 1. First prize is of Rs 3000 and the second prize is of Rs 2000. There are three third prizes of Rs. 500 each. If you buy one ticket, what is your expectation.

Answer 1

Answer:

The answer is Rs 0.65

Please go through the attachment

Answer 2

Step-by-step explanation:

Let X variable for the prize.

There is possibility of winning nothing, Rs 500,Rs 2000 and Rs 3000.

So, X will take these values.

Since there are 3 third prizes of 500 probability of winning third prize is .

1 first prize of 3000 probability of winning third prize is .

1 second prize of 2000 probability of winning third prize is .

Since, E(X)= X(PX)