The following data are from a random sample of 10 cars and their miles per gallon.{24, 18, 18, 31, 29, 32, 23, 19, 18, 28}Assume that the underlying population distribution is approximately normal and has no outliers. Findthe following. Answer exactly or round to 3 decimal places.a. The sample variance, s²=b. The sample standard deviation, s =mpg2mpg The expressionΣ (æ – 7.3)240 - 1a. What is the mean of the data set?was used to find the standard deviation fo a data set.b. How many data values are there in the set?

Answered: The following data are from a random…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter11: Data Analysis And Displays

Section: Chapter Questions

Problem 6CR

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Question

The following data are from a random sample of 10 cars and their miles per gallon.
{24, 18, 18, 31, 29, 32, 23, 19, 18, 28}
Assume that the underlying population distribution is approximately normal and has no outliers. Find
the following. Answer exactly or round to 3 decimal places.
a. The sample variance, s²
=
b. The sample standard deviation, s =
mpg2
mpg

The expression
Σ (æ – 7.3)2
40 - 1
a. What is the mean of the data set?
was used to find the standard deviation fo a data set.
b. How many data values are there in the set?

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The given data is $\{24, 18, 18, 31, 29, 32, 23, 19, 18, 28\}$ . Here the sample size is $n = 10$ . We assume that the underlying population distribution is approximately normal and has no outliers.