Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 55 inches
Question:
Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6 inches.
(a) What is the probability that a randomly chosen 10 year old is shorter than 48 inches?
(b) What is the probability that a randomly chosen 10 year old is between 60 and 65 inches?
(c) If the tallest 10% of the class is considered "very tall", what is the height cutoff for "very tall"?
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Step by Step Answer:
To solve these problems we will use the properties of the normal distribution and standard zscores The zscore measures how many standard deviations a ...View the full answer
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Related Book For 
OpenIntro Statistics
ISBN: 9781943450077
4th Edition
Authors: David Diez, Mine Çetinkaya-Rundel, Christopher Barr
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