The expected number who filed electronically in this group

According to the IRS, approx. 80% of taxpaters filed electorincally in 2012. For 15 randomly selected 2012 taxpayers, answer the following:

a) Find the probability that 7 or 8 of them filed electronically

Find the following:

b) The expected number who filed electronically in this group of 15 taxpayers. That is, fidn the mean of this distribution.

c) The standard deviation of this distrubiton

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Suppose 40 of the students of a campus are women if 20 of : suppose 40 of the students of a campus are women. if 20 of the women and 16 of the men of this campus are a students

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The expected number who filed electronically in this group : according to the irs approx. 80 of taxpaters filed electorincally in 2012. for 15 randomly selected 2012 taxpayers

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Indicate whether each statement refers to a uniformly : indicate whether each statement refers to a uniformly distributed variable normally distributed variable andor an

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