Spread Center Outliers Comparing

Given the following distributions, which has the highest median?

• Red

• Purple

• Black

Given the following distributions, which has the smallest IQR?

• Red

• Purple

• Black

Given the following distributions, which is symmetric?

• Red

• Purple

• Black

Given a set of skewed data, which is an appropriate measure of center?

• Mean

• Median

• Mode

• Mode

• Median

• Mean

• IQR

Which of the following is NOT affected by outliers?

• mean

• standard deviation

• IQR

• range

What does the interquartile range (IQR) measure?

• The range of the entire data set

• The spread of the middle 50% of the data

• The average value of the data set

• The difference between the mean and median

If outliers are removed, what changes more significantly the standard deviation or interquartile range (IQR)?

• Standard Deviation

• Interquartile Range (IQR)

Given a set of symmetric data, which of the following is an appropriate measure of spread?

• Mean

• Median

• Standard Deviation

• Interquartile Range (IQR)

Given a set of skewed data, which is an appropriate measure of spread?

• Mean

• Median

• Standard Deviation

• Interquartile Range (IQR)