The annual incomes of middle management employees is approximately normally distributed with a mean of Php372,000 and a standard deviation of Php8,000. About 68% of the incomes lie between what two income values? A. Php364,000 and Php380,000 B. Php356,000 and Php388,000 C. Php348,000 and Php396,000 D. Php340,000 and Php404,000

The annual incomes of middle management employees is approximately normally distributed with a mean of Php372,000 and a standard deviation of Php8,000. About 68% of the incomes lie between what two income values? A. Php364,000 and Php380,000 B. Php356,000 and Php388,000 C. Php348,000 and Php396,000 D. Php340,000 and Php404,000

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 4CYU

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Question

A. Php364,000 and Php380,000
B. Php356,000 and Php388,000
C. Php348,000 and Php396,000
D. Php340,000 and Php404,000

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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