Center, Spread, and Shape of Data

mean

• mean

• median

• range

• standard deviation

Class A has B higher median than Class B, and Class B has a higher mean than Class A

• Class A has B higher median than Class B, and Class B has a higher mean than Class A

• Class B has a higher median than Class A and Class B has a higher mean than Class B

• Class A and B have the same median, and Class B has a lower mean than Class A

• Class A and B have the same median, and Class A has a lower mean than Class B

• Residents of California are more likely to leave the state than residents of Rhode Island

• Residents of California are more likely not to have been born in-state than residents of Rhode Island

• Residents of California are more likely to travel internationally than Residents of Rhode Island

• Residents of California are more likely to have been born in another country or US state than to have been born in-state

Describe the shape of the graph.

• Skewed right

• Skewed left

• Uniform

• Symmetrical

Which statistic measures how spread out the data values are in a data set?

• mean

• mode

• maximum value

• standard deviation

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

• standard deviation

• interquartile range

• range

• median

Which summary statistic should be used to compare the two data sets and why?

• The median and the interquartile range because they are normally distributed.

• The median and the interquartile range because they are skewed.

• The mean and the standard deviation because they are normally distributed.

• The mean and the standard deviation because they are skewed.

Which of the following is a measure of spread, or variability?

(select all that apply)

• Interquartile Range

• Standard Deviation

• Mean

• Median

• Range

What measure of center is best to use when we have outliers?

• mean

• median

• mode

• range