The distribution of weights for 12-month-old baby boys in the US is approximately normal with mean u = 22.5 pounds and standard deviation o = 2.2 pounds. a) If a 12-month-old boy weighs 20.3 pounds, approximately what weight percentile is he in? b) If a 12-month-old boy is in the 84th percentile in weight, estimate his weight. c) Estimate the weight of a 12-month-old boy who is in the 25th percentile by weight. d) Estimate the weight of a 12-month-old boy who is in the 75th percentile by weight.
The distribution of weights for 12-month-old baby boys in the US is approximately normal with mean u = 22.5 pounds and standard deviation o = 2.2 pounds. a) If a 12-month-old boy weighs 20.3 pounds, approximately what weight percentile is he in? b) If a 12-month-old boy is in the 84th percentile in weight, estimate his weight. c) Estimate the weight of a 12-month-old boy who is in the 25th percentile by weight. d) Estimate the weight of a 12-month-old boy who is in the 75th percentile by weight.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Transcribed Image Text:The distribution of weights for 12-month-old baby boys in the US
is approximately normal with mean u = 22.5 pounds and standard
deviation o = 2.2 pounds.
a) If a 12-month-old boy weighs 20.3 pounds, approximately what
weight percentile is he in?
b) If a 12-month-old boy is in the 84th percentile in weight, estimate
his weight.
c) Estimate the weight of a 12-month-old boy who is in the 25th
percentile by weight.
d) Estimate the weight of a 12-month-old boy who is in the 75th
percentile by weight.
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