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. 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 18.4 feet tall?______
e. What is the probability that a randomly selected giraffe will be between 17.7 and 18.5 feet tall?_____
f. The 80th percentile for the height of giraffes is _____ ft.
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