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EXERCISES

1) Find the probability of getting exactly 2 heads in 5 tosses of a fair coin


a) Using formula

b) Using table

 

2) In 100 tosses of a fair coin, find:

a) the expected or mean number of

heads.

b) the standard deviation.

 

3) If 70% of male students eventually marry, what is probability that 40 or more of a random sample of 50 male students will eventually marry?

 

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