A new roller coaster at an amusement park requires


A new roller coaster at an amusement park requires individuals to be at least? 4' 8" ?(56 ?inches) tall to ride. It is estimated that the heights of? 10-year-old boys are normally distributed with μ=55.0 inches and σ=4 inches.

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

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Basic Statistics: A new roller coaster at an amusement park requires
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