Measure of Data Center Graphs

Since the data is symmetrical, which measure of center is the best use?

• Mean

• Mode

• Median

• Range

The box-and-whisker plots summarize the hourly wages of employees at two different fitness clubs. Based on the box-and-whisker plots, which statement must be valid?

• Fitness Plus has a smaller spread in the upper 25% of the hourly wages than The Fitness Center

• Fitness Plus has a smaller spread in the middle 50% of the hourly wages than The Fitness Center

• The Fitness Center has more employees earning an hourly wage of $17 than Fitness Plus

• The Fitness Center has a larger range in employee hourly wages than Fitness Plus

What is the range of the data?

• 12

• 5.6

• 5

• 10

Mrs. Glick displayed the line plot shown to her students. Four students then analyzed the dot plot. Each student's response is shown in the provided table.

Who CORRECTLY analyzed the data in Mrs. Glick's dot plot?

• Blythe

• Cliff

• Donna

• Earnest

Would the mean or the median be the better measure of center to describe the data?

• median, because there are gaps and/or clusters

• mean, because the data is symmetric and equally spread along the number line

Which set has a greater measure of center?

• A

• B

Which measure is the same in both classes?

• Median

• Lower Quartile

• Range

• Interquartile Range

Which set has a greater measure of center?

• A

• B

Which measure of center and variability should you use to to compare these data sets? Choose one of each.

• Mean

• Median

• Standard Deviation

• IQR

Which measures of center or variability are greater than 5 degrees? Select three choices.

• the mean of this week’s temperatures

• the mean of last week’s temperatures

• the range of this week’s temperatures

• the mean absolute deviation of this week’s temperatures

• the mean absolute deviation of last week’s temperatures