Assume scores on the Graduate Management Aptitude Test (GMAT) are normally distributed with a mean of 700 and a standard deviation of 80. A. What proportion of GMAT scores are between 600 and 850? B. A particular graduate business school will not consider for admission any student scoring in the lowest 25% on the GMAT. What GMAT score is needed to be considered for admission to this graduate business school?

Assume scores on the Graduate Management Aptitude Test (GMAT) are normally distributed with a mean of 700 and a standard deviation of 80. A. What proportion of GMAT scores are between 600 and 850? B. A particular graduate business school will not consider for admission any student scoring in the lowest 25% on the GMAT. What GMAT score is needed to be considered for admission to this graduate business school?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

Assume scores on the Graduate Management Aptitude Test (GMAT)
are normally distributed with a mean of 700 and a standard deviation
of 80.

A. What proportion of GMAT scores are between 600 and 850?
B. A particular graduate business school will not consider for
admission any student scoring in the lowest 25% on the GMAT.
What GMAT score is needed to be considered for admission to
this graduate business school?

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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