Measures of Center

Find the mode.

• 88

• no mode

• 90

• 93

Which is the correct data set for the dot plot?

• 1, 2, 3, 4, 5, 6, 7, 8, 9, 

• 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 7, 9

• 1, 2, 3, 4, 5, 7, 9

Which measure of center best represents this set of data?
12, 13, 11, 16, 31, 14, 10, 15

• Mean

• median

• mode

The Table above shows the points scored by the JV basketball team 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

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease

• The median will decrease

• The mean will increase

• The median will increase

What measure of center is best to use when we have outliers?

• mean

• median

• mode

• range

What is the maximum value?

• 58

• 66

• 64

• 60

What percentage of the data is between 90 and 140?

• 25 %

• 50%

• 75%

• 100%

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

What is the Mode?
  22,7,22,1,7,18,18,16,6,6,7

• 7

• 18

• 21

• 6