Class 9

Probability question bank (Maths)

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Q1.

$A$ coin is tossed $1000$ times with the following frequencies:
Head : $455$ Tail : $545$
Compute the probability for each event.

(A)

$0.455, 0.545$

(B)

$0.555, 0.555$

(C)

$0.444, 0.445$

(D)

$0.335, 0.635$

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Q2.

Two coins are tossed simultaneously $500$ times,and we get:
Two heads : $105$ times
One head : $275$ times
No head : $120$ times
Find the probability of occurrence of each of these events.

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