MEDIUM
12th CBSE
IMPORTANT
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A fair coin is tossed 8 times, find the probability ofat most six heads.

Important Questions on Binomial Distribution

MEDIUM
12th CBSE
IMPORTANT
Find the probability of 4 turning up at least once in two tosses of a fair die.
MEDIUM
12th CBSE
IMPORTANT
A coin is tossed 5 times. What is the probability that head appears an even number of times?
MEDIUM
12th CBSE
IMPORTANT
The probability of a man hitting a target is 1/4. If he fires 7 times, what is the probability of his hitting the target at least twice?
MEDIUM
12th CBSE
IMPORTANT
Assume that on an average one telephone number out of 15 called between 2 P.M. and 3 P.M. on week days is busy. What is the probability that if six randomly selected telephone numbers are called, at least 3 of them will be busy?
MEDIUM
12th CBSE
IMPORTANT
If getting 5 or 6 in a throw of an unbiased die is a success and the random variable X denotes the number of successes in six throws of the die, find P(X 4).
MEDIUM
12th CBSE
IMPORTANT
Eight coins are thrown simultaneously. Find the chance of obtaining at least six heads.
MEDIUM
12th CBSE
IMPORTANT
Five cards are drawn successively with replacement from a well-shuffled pack of 52 cards. What is the probability that all the five cards are spades ?
MEDIUM
12th CBSE
IMPORTANT
Five cards are drawn successively with replacement from a well-shuffled pack of 52 cards. What is the probability that only 3 cards are spades ?