According to College Board the scores on the AP History exam are normally distributed with N(72, 7.5). a. Find the z-score b. Find the raw score, write the answer in a complete sentence, round to the nearest whole number. What raw score is need to be in the top 4%?

According to College Board the scores on the AP History exam are normally distributed with N(72, 7.5). a. Find the z-score b. Find the raw score, write the answer in a complete sentence, round to the nearest whole number. What raw score is need to be in the top 4%?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 13PPS

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Question

According to College Board the scores on the AP History exam are normally distributed with N(72, 7.5).

a.	Find the z-score
b.	Find the raw score, write the answer in a complete sentence, round to the nearest whole number.

What raw score is need to be in the top 4%?

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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