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Approximate normal distribution with mean

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Heights of ten year old boys (5th graders) follow an approximate normal distribution with mean u=55.5 inches and standard deviation σ=2.7 inches:

(a) According to this normal distribution, what proportion of 10 -year-old boys are between 4 ft 4.5 in and 5 ft 6.5 in tall (between 52.5 inches and 66.5 inches)?

(b) A parent says his 10 -year-old son is in the 98th percentile in height. How tall is this boy? Give answer in inches

Reference no: EM131098026

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Approximate normal distribution with mean : Heights of ten year old boys (5th graders) follow an approximate normal distribution with mean u=55.5 inches and standard deviation σ=2.7 inches:
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