Chapter 11: Statistical Measures

Find the mean of {3, 8, 10, 1, 25}.

• 1

• 9.4

• 8

• 9

The heights in inches of 10 senior boys are 64, 65, 66, 68, 71, 72, 73, 73, 73, and 74. Find the mean of the heights.

• 69.9 in.

• 70 in.

• 69.7 in.

• 69.8 in.

Find the mean for the data set 99, 103, 140, 153, 109, 92, 125, 110, 140.

• 61

• 119

• 110

• 140

Mary Jo wants to find the average of her friend's weekly allowances. Use the table below, and find the mean weekly allowance.

• $5

• $12.50

• $7.50

• $10

Find the mode of the set of data.

24, 25, 30, 31, 31, 33, 34, 38, 41, 42, 44, 48, 49, 67

• 67

• 31

• 34

• 36

Find the median for the data set 2, 3, 5, 7, 9, 10, 12, 15.

• 8

• 10

• 7

• 9

The table below shows the amount that Gabriel and his friends spend on lunch on a typical day. Find the median of the set of data.

• $1.50

• $3.25

• $2.75

• $2.10

Find the mean, median, and mode of $32, $37, $20, $26, $42, $39, $26, $34, respectively.

• $34; $33; $26

• $32; $33; $26

• $32; $32; $26

• $34; $32; $26

Find the range of the data set 145, 612, 120, 349, 515, 212, 590.

• 512

• 470

• 445

• 492

The price for packs of bottled water at a grocery store over a nine week period was as follows: $3.25, $3.00, $3.50, $3.75, $3.25, $3.00, $2.50, $3.00, $2.75. Find the lower quartile rounded to the penny.

• $2.75

• $3.00

• $2.88

• $3.38