Answered: Question #46 (ti 84 calculator steps if…

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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Question #46 (ti 84 calculator steps if possible)

The lengths of pregnancies in a small rural village are normally distributed with a mean of 266 days and a standard deviation of 17 days.

In what range would you expect to find the middle 68% of most pregnancies?
Between days and days.

If you were to draw samples of size 51 from this population, in what range would you expect to find the middle 68% of most averages for the lengths of pregnancies in the sample?
Between days and days.

Enter your answers as numbers to the nearest whole days.

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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