Frequency Distribution Measure of Spread

You must calculate this measure of spread and square the result to find the standard deviation.

• Variance

• Range

• Standard Deviation

• Quartiles

In a standard distribution, 95% of the data points should be +/- 2 times this measure of spread from the mean.

• Variance

• Range

• Standard Deviation

• Quartiles

Which graph is used specifically for continuous data that is grouped into intervals?

• Frequency Table

• Dot Plot

• Bar Graph

• Histogram

This picture represents..

• Positive Skew

• Negative Skew

• Symmetrical Data

• Standard Distribution

Which store has a more varied data? (Show the needed math work) Range = Highest Value − Lowest Value Interquartile Range = Quartile 3 − Quartile 1

• Store V, based on RANGE

• Store S, based on INTERQUARTILE RANGE

• Both stores have equally varied data, based on RANGE

• Both stores have equally varied data, based on INTERQUARTILE RANGE

Which store has a more varied data? (Show the needed math work) Range = Highest Value − Lowest Value Interquartile Range = Quartile 3 − Quartile 1

• Store V, based on RANGE

• Store S, based on INTERQUARTILE RANGE

• Both stores have equally varied data, based on RANGE

• Both stores have equally varied data, based on INTERQUARTILE RANGE

Which measure of spread should be used to describe the distribution?

• MAD

• interquartile range

• range

• median

Which measure of spread should be used to describe the distribution?

• standard deviation

• interquartile range

• median

• mean

This picture represents..

• Positive Skew

• Negative Skew

• Symmetrical Data

• Standard Distribution

A statistical chart consisting of data points on a number line, typically using circles.

• Dot Plot

• Box and Whisker Plot

• Line Plot

• Histogram