Probability Quiz-2 for IBPS PO

1) Two cards are drawn from a deck of 52 cards one after another without replacement. What is the probability that atleast one of the card is black ?

A. 1/2
B. 23/102
C. 25/102
D. 1/4

2) Out of 200 students in a class, 100 play cricket, 50 play hockey and 60 play basketball. 30 play both cricket and hockey, 45 play both cricket and basketball and 35 play both hockey and basketball. If one student is chosen at randomn  from the class, then what is the maximum probability that he/she plays all the game ?

A. 3/20
B. 3/10
C. 1/10
D. 1/5

3) Out of 200 students in a class, 100 play cricket, 50 play hockey and 60 play basketball. 30 play both cricket and hockey, 45 play both cricket and basketball and 35 play both hockey and basketball. If one student is chosen at randomn  from the class, then what is the minimum probability that he/she plays all the game ?

A. 3/20
B. 3/10
C. 1/10
D. 1/5

4) The domain of the function f(x) consists of { 1, 2, 3, 4, 5, 6 } then what is the probability of f(x)< 8 where f(x)= 2x-1 ?

A. 1/2
B. 2/3
C. 5/6
D. 1/3

5) A card is drawn from a deck of 52 cards. Then what is the probability of it being an ace given that its black ?

A. 1/13
B. 1/2
C. 2/13
D. 1/3

6) A bag contains 2 white, 3 black and 4 blue balls. 3 balls are drawn one after another without replacement. Then what is the probability of not getting any white ball ?

A. 343/729
B. 5/12
C. 7/9
D. 7/12

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