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Author Question: "DRUGS R US" is a large manufacturer of various kinds of liquid vitamins. The quality control ... (Read 33 times)

olgamartinez04

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on: Mar 25, 2023

Question 1

X is a random variable with the probability function:

f(X) = X/6     for X = 1, 2 or 3

The expected value of X is


◦

0.333


◦

0.500


◦

2.000


◦

2.333



Question 2

"DRUGS R US" is a large manufacturer of various kinds of liquid vitamins. The quality control department has noted that the bottles of vitamins marked 6 ounces vary in content with a standard deviation of 0.3 ounces. Assume the contents of the bottles are normally distributed.

a.What percentage of all bottles produced contains more than 6.51 ounces of vitamins?
b.What percentage of all bottles produced contains less than 5.415 ounces?
c.What percentage of bottles produced contains between 5.46 to 6.495 ounces?
d.Ninety-five percent of the bottles will contain at least how many ounces?
e.What percentage of the bottles contains between 6.3 and 6.6 ounces?

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by olgamartinez04 on Mar 25, 2023

GoldenBrown

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Reply #1 on: Mar 25, 2023
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olgamartinez04

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Reply 2 on: Mar 25, 2023
Wow, this really help

phuda

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Reply 3 on: Yesterday
Gracias!

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