+ BIUA Normal text - Arial 14 E- 1E E According to Mr. Bock, 67% of all students at LHS play sports. Suppose we are interested in the portion of the 100 students in the East Atrium play sports. (a) Is the normal approximation to the proportion p=r/n valid? Explain. (b) What is the probability that the proportion of those in the East Atrium who play sports is at least e fourths? (c) What is the probability that the proportion of those in the East Atrium who play sports is no more in 60%? (d) What is the probability that the proportion of those in the East Atrium who play sports is between % and 75%? About 68% of the students at Fairview Community College favor a new policy regarding parking campus. Suppose we are interested in the proportion of 65 students in a mathematics class who vor the policy. (a) Is the normal approximation to the proportion p= r/n valid? Explain. !!!

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