Practice question

MCQ

Question

Suppose a unbiased die is thrown 72 times and getting a 4 on a throw is termed as success then find the variance of number of success ?

Choose one · Correct answer highlighted

30 5 10 Correct 20

Recall the rule success getting 4: p=1/6, n=72, q=5/6. Variance=npq=72×1/6×5/6=10. Complete formula.

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