MEDIUM
Earn 100

A pair of fair dice is thrown independently three times. The probability of getting a score of exactly twice is
(a)
(b)
(c)
(d)

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Important Questions on Probability
MEDIUM

HARD

EASY

MEDIUM

HARD

HARD

HARD

MEDIUM

MEDIUM

MEDIUM
Six persons go for an interview. What is the probability of selection of and in the interview?

MEDIUM

EASY

MEDIUM
When a certain biased die is rolled, a particular face occurs with probability and its opposite face occurs with probability All other faces occur with probability
Note that opposite faces sum to in any die. If and the probability of obtaining total sum when such a die is rolled twice, is then the value of is

EASY

MEDIUM

MEDIUM

EASY
If and are events such that and . Then,

EASY
In a college, of the girls and of the boys took part in a social camp. The total number of students in the college took part in the camp is:

EASY

MEDIUM
For the following distribution function of a random variable

