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014: 5 months ago

The variance of the number of heads resulting from ten independent tosses of a fair coin is

a) 5/4 b) 5/2 c)3/4 d)3/2

can anyone please help me with this?

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Answer 1

yvoneeny: 5 months ago

The variance of the number of heads that result from ten independent tosses of a fair coin is 5/2. Successive tosses are usually independent;
knowing we got Heads on the ?rst toss doesn't help in predicting
the outcome of the 2nd toss. Check out www.marin.edu/~npsomas/Lectures/ch4_probability.htm to learn more.

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Answer 2

dylanfjets: 5 months ago via iPhone

If a camel can travel 3 miles in 30 minutes, then the answer is 5/2

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