Q1 of 36 Page 121

Write sample space ‘S’ and number of sample point n(S) for each of the following experiments. Also write events A, B, C in the set form and write n(A), n(B), n(C).

Three coins are tossed simultaneously.


Condition for event A : To get at least two heads.


Condition for event B : To get no head.


Condition for event C : To get head on the second coin.

Sample Space, S = {HHH, HHT, HTT, HTH, THT, TTH, THH, TTT}


Number of sample points, n(S) = 8


To get at least two heads ,A = {HHH, HHT, HTH, THH}


n(A) = 4


To get no head, B = {TTT}


n(B) = 1


To get head on the second coin ,C = {HHH, HHT, THH}


n(C) = 3


More from this chapter

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1

Write sample space ‘S’ and number of sample point n(S) for each of the following experiments. Also write events A, B, C in the set form and write n(A), n(B), n(C).

One die is rolled,


Event A : Even number on the upper face.


Event B : Odd number on the upper face.


Event C : Prime number on the upper face.

1

Write sample space ‘S’ and number of sample point n(S) for each of the following experiments. Also write events A, B, C in the set form and write n(A), n(B), n(C).

Two dice are rolled simultaneously,


Event A : The sum of the digits on upper faces is a multiple of 6.


Event B : The sum of the digits on the upper faces is minimum 10.


Event C : The same digit on both the upper faces.

1

Write sample space ‘S’ and number of sample point n(S) for each of the following experiments. Also write events A, B, C in the set form and write n(A), n(B), n(C).

Two digit numbers are formed using digits 0, 1, 2, 3, 4, 5 without repetition of the digits.


Condition for event A : The number formed is even


Condition for event B : The number formed is divisible by 3.


Condition for event C : The number formed is greater than 50.

1

Write sample space ‘S’ and number of sample point n(S) for each of the following experiments. Also write events A, B, C in the set form and write n(A), n(B), n(C).

From three men and two women, environment committee of two persons is to be formed.


Condition for event A : There must be at least one woman member.


Condition for event B : One man, one woman committee to be formed


Condition for event C : There should not be a woman member.