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 closelyapproximate a normal curve, with mean 85 g and standard deviation 2 g. Use the symmetry of the normal curve and the empirical rule as needed to estimate the number of students reportingreadings between 81 g and 89 g.The number of students reporting readings between 81 g and 89 g is(Round to the nearest whole number as needed.)

Mean(μ)=85 standard deviation(σ)=2 Empirical rules:1) P(μ-σ<X<μ+σ)=64%2)…

Answered: Suppose 140 geology students measure…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Suppose 90 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 86 g and standard deviation 1 g. Use the symmetry of the normal curve and the empirical rule as needed to estimate the number of students reporting readings between 85 g and 87 g. The number of students reporting readings between 85 g and 87 g is (Round to the nearest whole number as needed.) Enter your answer in the answer box. Cop dele insert prt sc f8 f6 esc E backspace & 3. 6 F G H. K 00 5 LU
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Suppose 140 geology students measure the mass of an ore sample. Due to human error and limitaions in the reliability of the balance, not all the readins are equal. The results are found to closley approxiamate a normal curve, with mean 88 g and standard deviation 1 g. Use the symmetry of the normal curve and the emirical rule as needed to estimate the number of students reporting readings more than 88 g.

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