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Name ___Unit: Data and Statistics Student Handout 3Date ___ Pd ___MEASURES OF VARIABILITY Measures of VARIABILITY spread out A measure of variability is a way of describing how ___ the data is. It

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How to fill out measures of variability

01

Calculate the mean of the data set.

02

Find the difference between each data point and the mean.

03

Square each of these differences.

04

Sum up all the squared differences.

05

Divide this sum by the total number of data points minus 1 (n-1) to calculate the variance.

06

Take the square root of the variance to find the standard deviation.

Who needs measures of variability?

01

Researchers in various fields such as statistics, economics, and psychology use measures of variability to understand the spread of data and make inferences about populations.

02

Investors and financial analysts use measures of variability to evaluate risk and make decisions about investments.

03

Educators use measures of variability to analyze student performance and make adjustments to teaching strategies.

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What is measures of variability?

Measures of variability refer to statistical measures that describe the spread or dispersion of a set of data points.

Who is required to file measures of variability?

Individuals or organizations collecting data and analyzing data are required to file measures of variability.

How to fill out measures of variability?

Measures of variability can be filled out by calculating various statistical measures such as range, variance, and standard deviation.

What is the purpose of measures of variability?

The purpose of measures of variability is to provide insights into the spread and distribution of data points, helping in decision making and analysis.

What information must be reported on measures of variability?

Information such as the range, variance, standard deviation, and quartiles of the data set must be reported on measures of variability.

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