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RD Sharma - Volume 2

Exercise 31.1

1 2 A 2 B 3 4 5 6 7 8 9

Exercise 31.2

1 2 3 4 5 6 A 6 B 6 C 7 8 9 10 11 12 13 14

Exercise 31.3

1 2 3 4 5 A 5 B 5 C 5 D 6 7 8 A 8 B 8 C 9 A 9 B 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Exercise 31.4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Exercise 31.5

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

Exercise 31.6

1 2 3 4 5 6 7 8 9 10 11 12 13

Exercise 31.7

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Very short answer

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MCQ

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Q. 75.0( 1 Vote )

If A and B are tw

Class 12th RD Sharma - Volume 2 31. Probability

Answer :

Given A and B are independent events =>

Since A and B are independent, A and are also independent

)

By theorem,

0.8= 0.3+(1-P(B))-0.3(1-P(B))

0.8= 0.3+1-P(B)-0.3+0.3P(B)

0.8-1= -0.7P(B)

-0.2= -0.7P(B)

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