a class consists of 30 students of which 20 are boys and 10 are girls half of the boys and half of the girls are blue eyed a person is selected at random what is the probability that the person is a boy or Blue Eyed
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Step-by-step explanation:
Given,
No. of boys and girls= 20 and 10 respectively.
No. of boys and girls having blue eyes= 10 and 5 respectively
Probability of a boy with blue eyes who is chosen at random= 10/30=1/3.
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Answered by
1
Answer:
Total Number of Boys = 20
No. of boys which are blue eyed = 10
Total No. of girls = 10
No. of girls which are blue eyed = 5
Therefore,
Total no. of cases = 30
No. of Favourable cases = 20+5
= 25
Therefore, P(a boy or a blue eyed person) = 25/30.
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