Contemporary Math Worksheet With Answers Page 2
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4Contemporary Math Class Problems
Chapter 16
4. Refer to a normal distribution described by the following figure. The mean is μ and the standard
deviation is σ.
The mean μ =54
95% of the total area implies that the values shown represent 3σ
(84‐24)/2=30
24+30=54 or 84‐30=54
5. Refer to a normal distribution described by the following figure. The mean is μ and the standard
deviation is σ.
The mean μ =
16% of the total area implies that the values shown represent σ
(60.5 – 44.5)/2=8
44.5+8=52.5 or 60.5‐8=52.5
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