Q. 245.0( 1 Vote )

A Bag I contains

Answer :

Given Data:

• Bag I contains 5 red and 4 white balls

• Bag II contains 3 red and 3 white balls


Two balls are transferred from the Bag I to the Bag II

Three possibilities:

• Ball transferred is white, E1

• Ball transferred is red, E2

• One ball is red and other is white, E3

• The ball drawn from the Bag II is red, A

Since this happens after one of the events E1, E2, E3 already happened.

Now bag II has 6 balls,

Probability that one red ball and one white ball are transferred from the Bag I to the Bag II is given by Baye’s Theorem


Given data:

Two dice thrown thrice


Total outcomes are 6x6 =36

Favorable outcomes are (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6),

There can be these situations

• No doublets

• Exactly 1 time doublets appear

• Exactly 2 times doublets appear

• 3 time doublets appear

Let X be random variable representing these situations

Now X = 0, 1, 2, 3

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