The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally distributed with standard deviation 0.8 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the median giraffe height? c. What is the Z-score for a giraffe that is 19.5 foot tall? ft. d. What is the probability that a randomly selected giraffe will be shorter than 16.8 feet tall? e. What is the probability that a randomly selected giraffe will be between 16.4 and 16.9 feet tall? f. The 85th percentile for the height of giraffes is ft.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 5CR
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The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally distributed with
standard deviation 0.8 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to
4 decimal places where possible.
a. What is the distribution of X? X - N
b. What is the median giraffe height?
ft.
c. What is the Z-score for a giraffe that is 19.5 foot tall?
d. What is the probability that a randomly selected giraffe will be shorter than 16.8 feet tall?
e. What is the probability that a randomly selected giraffe will be between 16.4 and 16.9 feet tall?
f. The 85th percentile for the height of giraffes is
ft.
Transcribed Image Text:The mean height of an adult giraffe is 17 feet. Suppose that the distribution is normally distributed with standard deviation 0.8 feet. Let X be the height of a randomly selected adult giraffe. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the median giraffe height? ft. c. What is the Z-score for a giraffe that is 19.5 foot tall? d. What is the probability that a randomly selected giraffe will be shorter than 16.8 feet tall? e. What is the probability that a randomly selected giraffe will be between 16.4 and 16.9 feet tall? f. The 85th percentile for the height of giraffes is ft.
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