What proportion of boys is tall enough to ride

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Problem - A new roller coaster at an amusement park requires individuals to be at least 4' 8" (56 inches) tail to ride. It is estimated that the heights of 10-year-old boys are normally distributed with p = 53.5 inches and a = 4 inches.

Required -

a. What proportion of 10-year-old boys is tall enough to ride the coaster?

b. A smaller coaster has a height requirement of 50 inches to ride. What proportion of 10-year-old boys is tall enough to ride this coaster?

c. What proportion of 10-year-old boys is tall enough to ride the coaster in part b but not tall enough to ride the coaster in part a?

Reference no: EM132733775

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