Q18 of 55 Page 623

A coin is tossed 60 times and the tail appears 35 times. What is the probability of getting a head?

Total number times a coin is tossed = 60

Number of times tail occurred = 35

Number of times tail occurred = 60 – 35 = 25

Probability P() =

Probability of getting a head is P(head) = = =

A die is thrown 50 times and the outcomes are recorded as under.

Outcome	1	2	3	4	5	6
No of times	11	9	8	5	7	10

If a die is thrown at random, what is the probability of getting 8?

It is given that the probability of winning a game is 0.7. What is the probability of losing the game?

Each question consists of two statements, namely, Assertion(A) and Reason (R). Choose the correct options.

Assertion (A)	Reason (R)
In a cricket match a batsman hits a boundary 9 times out of 45 balls he plays. The probability that in a given throw he does not hit the boundary is	P (E ) +P (not E) =1

Each question consists of two statements, namely, Assertion(A) and Reason (R) . Choose the correct options.

Assertion (A)	Reason (R)
The probability of a sure event is 1.	Let E be an event. Then 0<P (E ) <1.