HSC Arts (English Medium) इयत्ता १२ वी - Maharashtra State Board Important Questions for Mathematics and Statistics

A fair coin is tossed 8 times. Find the probability that it shows heads exactly 5 times

The probability that a person who undergoes a kidney operation will be recovered is 0.5. Find the probability that out of 6 patients who undergo similar operation none will recover

The probability that a person who undergoes a kidney operation will be recovered is 0.5. Find the probability that out of 6 patients who undergo similar operation half of them recover.

If a fair coin is tossed 10 times. Find the probability of getting at most six heads.

Let the probability mass function (p.m.f.) of a random variable X be P(X = x) = `""^4C_x (5/9)^x xx (4/9)^(4 - x)`, for x = 0, 1, 2, 3, 4 then E(X) is equal to ______.