SOLUTION: Consider a random experiment in which a coin is tossed three times. Let 'x' be the number
Of heads. What is the variance of the
Probability distribution of 'x'?
Algebra.Com
Question 1041450: Consider a random experiment in which a coin is tossed three times. Let 'x' be the number
Of heads. What is the variance of the
Probability distribution of 'x'?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
If it is a fair coin, then the variance is .
If it is not a fair coin, then the variance is ,
where p is the probability of a head turning up in a single toss.
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