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Mathematics, 14.01.2021 03:30 KayleighMorganhopkin
21. In the accompanying diagram, the shaded area represents approximately 95% of the
scores on a standardized test. If these scores ranged from 78 to 92,
a) What is the mean?
b) What is the standard deviation?
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21. In the accompanying diagram, the shaded area represents approximately 95% of the
scores on a st...
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