# 100 0 c find pz 166 39 0 166 c find pz 166 40 the

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100% - 99.78% = .22% 2.85 0
c. Find P(z < -1.66) 39 0 -1.66
c. Find P(z < -1.66)
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d. Find P(-1.66 < z < 2.85) 41 0 2.85 -1.66 4.85% .22% The probability that z falls between -1.66 and 2.85 is 1 minus the probability that is does not. 100% - 5.07% = 94.93%
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a. Find point z such that 25% fall below it 43 0 Z 25%
44 Look for the closest number to the probability that you want. This case we will look at .2514. The value for Z is -.67
b. Find point z such that 40% fall above it 45 0 Z 40% Since the table is listed as area to the left of the line we need to look up in the table the value of . 6000
0 .25 40% 46 b. Find point z such that 40% fall above it The value for Z is .25
47 69 71.5 74 76.5 66.5 64 61.5 2.5 σ = 5 feet 6 inches and 6 feet tall?
a. What percent of men are at least 6 feet tall? 48
b. What percent of men are at between 5’6” and 6’ tall?
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c. How tall must a man be to be in the tallest 10% of all adult men?
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Section 2.2 Complete Homework: #’s 2.20, 2.24, 2.25, 2.28 – 2.33 51
Chapter review 52
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Chapter 2 Complete Homework: #’s 2.38 – 2.48 54
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