Question

EXERCISE 22(A)
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1. A coin is tossed once. Find the probability of :
(i) getting a head
(ii) not getting a head.
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O explain the answer ​

Answer 1

Step-by-step explanation:

Originally Answered: What is the probability of getting a head if a pair of coin is tossed? The possible outcomes are (H,H), (H,T), (T,H) and (T,T). The probability of getting exactly 1 head is 2/4 = 1/2. The probability of getting exactly 2 heads is 1/4 = 1/4.

Answer 2

ANSWER:(i)1/2

(ii)1/2

STEP BY STEP EXPLANATION: (i) when a coin is tossed once,

possible outcomes = {H,T}

Total number of outcomes=2

The cases favourable to getting a head are------

{H}

Therefore number of favourable cases= 1

P(getting a head)=favourable cases/total number of outcomes

=1/2

(ii)P(not getting a head)=1- P(getting a head). [since P(E)+ P(not E)= 1]

=1-1/2

=1/2

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