On a practical nursing licensing exam, the mean score is 79 and the standard deviation is 9 points. a. What is the standardized score of a student with a raw score of 87? b. What is the standardized score of a srudent with a raw score of 79? c. Assuming the scores follow a normal distribution, what is the probabiiity that a score selected at random is above 85?

On a practical nursing licensing exam, the mean score is 79 and the standard deviation is 9 points. a. What is the standardized score of a student with a raw score of 87? b. What is the standardized score of a srudent with a raw score of 79? c. Assuming the scores follow a normal distribution, what is the probabiiity that a score selected at random is above 85?

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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On a practical nursing licensing exam, the mean score is 79 and the standard deviation is 9 points.

a. What is the standardized score of a student with a raw score of 87?

b. What is the standardized score of a srudent with a raw score of 79?

c. Assuming the scores follow a normal distribution, what is the probabiiity that a score selected at random is above 85?

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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