Data Sets and Outliers

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

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.

Which interval has the greatest number of students?

• 48-51

• 56-59

• 60-63

• 64-67

• The box-and-whisker plot is correct.

• The value of the Q3 is incorrect.

• The value of the Q1 is incorrect.

• The median is incorrect.

Which type of display would be appropriate in order to show the shape and spread that exist in a set of data but not the gaps or specific values?

• Histogram

• Dot Plot

• Box Plot

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.

Find the Median

• 98

• 93

• 78

• 85