Question

A random number generator draws at random with replacement from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. In 5000 draws, the chance that the digit 0 appears fewer than 495 times is closest to 25%,30%,35%,40%,45%,50%

Answer 1

I know that 35% is wrong!!!

Answer 2

Take to Binomial Distn to Normal Distn. Si it becomes P(x<=494).

Answer 3

I know that 30% is also wrong!

Answer 4

It is 40% the correct answer

Answer 5

40% is correct.