Range and Interquartile Range Mean Median Range

What is a the meaning for "median"?

• fair share

• middle

• repeats the most

• variation

Find the median.
12, 5, 9, 18, 22, 25, 5

• 9

• 8

• 12

• 18

The given data represents the ages of two softball teams. The data is represented by the box-and-whisker plots below. Select all of the following statements about these data sets that are true.

• The data sets have the same lower quartiles.

• Since data for Team A is skewed right, the mean is more than the median.

• The interquartile range for Team B is greater than Team A

• The data sets have the same range but different medians.

• The data sets have the same interquartile range but different ranges.

Which of the following best describes the process of finding the interquartile range for a set of data?

• Add the biggest and smallest numbers.

• Place the numbers in order from least to greatest and find the middle.

• Find the difference between the maximum and the minimum.

• Subtract Q1 from Q3.

Which restaurant has a greater IQR?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

Which club has the smaller spread, less variation?

• Cruisers

• Car Hops

• Skewed Left
• Skewed Right
• Uniform
• Symmetric

What is the interquartile range (IQR) of the data set?

• 20

• 25

• 5

• 10

If we use the median to measure the typical value or center of the data, we would use the _________ to measure the variability.

• Mode

• MAD

• Standard Deviation

• IQR or Interquartile Range

Gabriella's quiz grades are 88, 92, 92, 96, 98. Gabriella scored a 20 on her sixth quiz. What effect does this score have?

• The low score causes the median to increase.

• The low score causes the median to decrease.

• The low score causes the mean to increase.

• The low score causes the mean to decrease.