Answered: In a recent year, the scores for the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of

20.2

and a standard deviation of

6.8.

Complete parts (a) through (d) below.

(a) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is less than

17.

The probability of a student scoring less than

enter your response here.

(Round to four decimal places as needed.)

(b) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is between

10.7

and

29.7.

The probability of a student scoring between

10.7

and

29.7

enter your response here.

(Round to four decimal places as needed.)

(c) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is more than

34.2.

The probability of a student scoring more than

34.2

enter your response here.

(Round to four decimal places as needed.)

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.

Expert Solution