Central Tendencies

Which number is not the mean, median, mode, or midrange of the data set 4, 3, 15, 11, 3, 8, 7, 5?

• 3

• 6

• 12

• 11

Tags

CCSS.6.SP.B.5C

The scores awarded to 25 students for an assignment were as follows:

4 7 5 9 8 6 7 7 8 5 6 9 8 5 8 7 4 7 3 6 8 9 7 6 9

What is the mode?

• 6

• 7

• 8

• 9

Tags

CCSS.6.SP.B.5C

Find the mean of these numbers:

5,11,2,12,4,2

• 4.1

• 6

• 4.5

• 4

Tags

CCSS.6.SP.B.5C

What is the mode of the scores?

• 24

• 14

• 34

• 30

What measure of central tendency (mean, median or mode) would be best for the following set of data?

0, 89, 92, 97, 99, 100

• Mode, because it is the one that shows up the most.

• Median, because there is an outlier. The outlier could be incorrect and would influence the mean too much.

• Mean, because there is not an outlier. You should always use the mean.

• There is not a best measure of central tendency for this data.

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

The number of miles that Jenna cycled each week for a 7-week period is shown:

36, 42, 28, 52, 48, 36, 31

What is the median number of miles Jenna cycled?

• 24

• 36

• 39

• 52

Tags

CCSS.6.SP.B.5C

Liam works at a zoo. He was looking at some data showing the masses of their 5 Thai elephants. The mean mass of the elephants was 2,800kg and the median mass was 2,600kg. The heaviest elephant, named Omar, was recorded as 5,000kg.

Liam then found out that Omar's mass was written down incorrectly, and that Omar actually has a mass of 6,000kg.

How will increasing Omar's mass affect the mean and median?

• Both the mean and median will increase.

• The median will increase, and the mean will stay the same.

• The mean will increase, and the median will stay the same.

• Nothing will change

If a student were to not try throughout the whole science unit and receives a score of 25, how would that affect the mean and the median?

• Both the mean and median will increase, but the median will increase by more than the mean.

• Both the mean and median will increase, but the mean will increase by more than the median.

• The mean and the median will stay the same.

• Both the mean and median will decrease, but the mean will decrease by more than the median.

Which measure of central tendency is MOST EASILY affected by outliers?

• mean

• mode

• median

• midrange

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

The prices at several different stores for a pair of shoes are shown below.

$78, $79, $81, $82, $83

Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• Only the midrange was affected.

• The median increased, and the range increased.

• The mean increased, and the range increased.

• The mean decreased and the range increased.