Math, asked by shreyaspawar03, 23 days ago

A bag contains 8 red and 5 white balis. Two successive draws of 3 balis are made without replacement. The probability at the First draw will produce 3 white balls and second 3 red balls is? ​

Answers

Answered by akshaybarhate117
0

Step-by-step explanation:

A bag contain 8 red and 5 white balls

⇒P(A∩B)=P(A)P(

A

B

)

A is the event such that the first drawing will give 3 white balls.

B is the event such that the second drawing will give 3 blue balls.

⇒P(A)=

3!10!

13!

3!2!

5!

=

2!3!

5!10!

=

143

5

⇒P(

A

B

)=

3!7!

10!

3!5!

8!

=

5!10!

8!7!

=

15

7

⇒P(A∩B)=P(A)(

A

B

)=

143

5

×

15

7

=

429

7

=0.01632

Hence, the answer is

429

7

.

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