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Description: 8 - When the weight of a parcel of orange is measured, it has been observed that it conforms to the normal distribution with an average of 190 grams and a standard deviation of 25 grams. 9 out of 500 oranges in this package were under a certain weigh

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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8 - When the weight of a parcel of orange is measured, it has been observed that it conforms to the normal distribution with an average of 190 grams and a standard deviation of 25 grams. 9 out of 500 oranges in this package were under a certain weight and could not pass the test. How many grams or less did oranges fail the test?
A) 136 gr

B) 135 gr

C) 136.5 gr

D) 134.5 gr

E) 137.5 gr

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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