Answered: o help students improve their reading,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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To help students improve their reading, a school district decides to implement a reading program. It is to be administered to the bottom 4% of the students in the district, based on the scores on a reading achievement exam. If the average score for the students in the district is 117.6, find the cutoff score that will make a student eligible for the program. The standard deviation is 20. Assume the variable is normally distributed. Use a graphing calculator and round the answer to the nearest whole number.

The cutoff score for the bottom

4% of the scores is ?

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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