The distribution of weights for 12-month-old baby boys in the USis approximately normal with mean u = 22.5 pounds and standarddeviation o = 2.2 pounds.a) If a 12-month-old boy weighs 20.3 pounds, approximately whatweight percentile is he in?b) If a 12-month-old boy is in the 84th percentile in weight, estimatehis weight.c) Estimate the weight of a 12-month-old boy who is in the 25thpercentile by weight.d) Estimate the weight of a 12-month-old boy who is in the 75thpercentile by weight.

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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 js he in?

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 js he in?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

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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