The mean height of an adult giraffe is 18 feet. Suppose that the
distribution is normally distributed with standard deviation 0.9
feet. Let X be the height of a randomly selected adult giraffe.
Fill the blank spaces below. 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 20 foot tall?
___________
d. What is the probability that a randomly selected giraffe will be
shorter than 18.9 feet tall? ___________
e. What is the probability that a randomly selected giraffe will be
between 18.3 and 19.2 feet tall? ___________
f. The 85th percentile for the height of giraffes is ______ ft.
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