Probability Practice Test 1

Question : 35 of 40

Marks: +1, -0

Out of 5 girls and 3 boys, 4 children are to berandomly selected for a quiz contest. What isthe probability that all are girls?

Solution:

Total number of children = 8
Girls = 5
Boys = 3
Probability that all are girls

^5C_4/{^8C_4}=5/{70}=1/14

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