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In: Math

Suppose 140 geology students measure the mass of an ore sample. Due to human error and...

Suppose

140

geology students measure the mass of an ore sample. Due to human error and limitations in the reliability of the​ balance, not all the readings are equal. The results are found to closely approximate a normal​ curve, with mean

83

g and standard deviation

3

g. Use the symmetry of the normal curve and the empirical rule as needed to estimate the number of students reporting readings between

80

g and

86

g.

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