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75% of people only speak english. sample of 150 people is taken. X= the people who...

75% of people only speak english. sample of 150 people is taken. X= the people who only speak english

show that it is appropriate to use the normal approximation to the binomial

use the normal approx. to find that p(X> 110)

Math   Statistics-And-Probability   
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Answer #1

np=150*0.75 = 112.5 >5

nq=150*0.25 = 37.5 >5

Therefore it is appropriate to use the normal approximation to the binomial.

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