Consider the height distribution for -year-old males.
(a) Find its mean and standard deviation. Show your method clearly.
(b) What height would correspond to a z-score of Show your work.
(b) The height correspond to -score of is
The distribution of heights for -year-old males is symmetric, single-peaked, and bell-shaped.
z-score of corresponds to a Height z-score ofcorresponds to a height oflocalid="1649750294635"
The mean of the standard normal distribution is .
is the mean of the standard normal distribution.
Accordingly, the mean of the normal height distribution is zero with a -score of :
is the standard normal distribution.
A standard deviation for a normal height distribution is then equal to the difference between the score of corresponding to the mean and the standard deviation:
The distribution of heights foryear-old males is symmetric, single-peaked, and bell-shaped.
score of corresponds to the height
score of corresponds to the heightTaking the score of
1a Result exercise is:
A score is the mean multiplied by a score plus a standard deviation:
Old folks Here is a stem plot of the percent of residents aged and older in thestates:
(a) Find and interpret the percentile for Colorado, which has of its residents aged or older.
(b) Find and interpret the percentile for Rhode Island, with of residents aged or older.
(c) Which of these two states is more unusual? Explain.
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