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AI Gen: Probability and Statistics question bank (Mathematics)

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Q1.

A bag contains 4 red and 3 black balls, and another bag contains 2 red and 4 black balls. One bag is chosen at random and a ball is drawn. What is the probability that the ball drawn is red?

Topic: Probability and Statistics | Source: AI Generated (JEE Main)

(A)

13/21

(B)

11/21

(C)

10/21

(D)

8/21

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Q2.

The mean and variance of 7 observations are 8 and 16 respectively. If 5 of the observations are 2, 4, 10, 12, 14, then the remaining two observations are:

Topic: Probability and Statistics | Source: AI Generated (JEE Main)

(A)

6, 8

(B)

5, 9

(C)

4, 10

(D)

7, 7

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