Mean Median Range Quartile

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.

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.

If outliers are removed, what changes more significantly the mean or median?

• Mean

• Median

Which restaurant has a greater IQR?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

The table shows the points scored by the JV basketball team at Cox Mill High School in their first seven games. Calculate the mean, median, mode and range. Which statistical measure makes the team sound the best?

• Mean

• Median

• Mode

• Range

Match the following terms with its correct definition.

• Add together, and divide by 2.

• Mean or Average

• The middle value in a list of numbers when arranged in ascending order

• Median

• The number that appears most frequently in a set of numbers

• Range

• The difference between the highest and lowest values in a set of numbers

• Mode

• The sum of all values divided by the total number of values

• What if there are 2 numbers in the middle?

What is the first quartile?

• 3

• 4

• 2

• 6

Find the Interquartile range of the data set.

• 24

• 48

• 45

• 34

Ms. Andrey claims the average score on a quiz in her class was 25. Mr. Luna claims the average score on a quiz in his class is 25.

• Ms. Andrey used the mode, while Mr. Luna used the median.

• Ms. Andrey used the mean, while Mr. Luna used the mode.

• Both teachers used the mean.

• Both teachers used the median.

Find the Interquartile Range of the box plot.

• 4

• 9

• 2

• 8