Question

There are 21 girls and 19 boys in a class. One child is picked at random for a committee. Check the probability of the child being picked is a boy, a girl?

Answer 1

total favourable outcome=21+19

=40

P{Boy}=19/40

P{Girl}=21/40

P{Boy orGirl}=21+19/40

=40/40=1

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