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Decide whether you can use the normal distribution to approximate the binomials distribution. If you can,...

Decide whether you can use the normal distribution to approximate the binomials distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities.

A surgery of adults found that 74% of those who text on cell phones receive spam or unwanted messages. You randomly select 100 adults who text on cell phones. Complete parts (a) through (d).

Determine whether a normal distribution can be used to approximate the binomial distribution.

(a) Find the probability that the number of people who receive spam or unwanted messages is exactly 76.

Math   Statistics-And-Probability   
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Answer #1

Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(0.57, TRUE)" & "=NORM.S.DIST(0.34, TRUE)" to find the probability.

The probability that the number of people who receive spam or unwanted messages is exactly 76 is

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