Measures of Center, Spread, and Shapes of Distributions

To find the mean of a set of numbers, add up all the items and divide by...

• 2 (half)

• The minimum of the data set

• The maximum of the data set

• The number of items in the data set

Tags

CCSS.6.SP.B.5C

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.5

CCSS.6.SP.A.3

TRUE OR FALSE:

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

Tags

CCSS.6.SP.B.5C

The number of text messages that Isaac received each day for a week is shown: 47, 49, 54, 50, 48, 47, 55

What is the MEAN and the MEDIAN?

• Mean=49

  Median=54

• Mean=49

  Median=50

• Mean=50

  Median=54

• Mean=50

  Median=49

Tags

CCSS.7.EE.B.3

TRUE OR FALSE:

The range is the difference between the greatest and the least data values.

• True

• False

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

• symmetric, with outliers
• symmetric, with no outliers
• skewed to the left
• skewed to the right 

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

CCSS.6.SP.B.4

• both sets of data have the same median
• Ander's center is at 6
• Marcus's center is at 7
• Ander's spread is greater than Marcus's

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.A.1

• The shapes of both plots are symmetrical.

• The data spreads for both populations are the same.

• Route 9 is skewed left.

• Route 9 is skewed right.

• Both plots have outliers.

Which measure of center is more appropriate, the mean or the median? Why?

• Mean because this is a skewed data set.

• Median because this is a skewed data set

• Mean because this set is normally distributed.

• Median because this set is normally distributed.

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

The shape of the distributions is _______________________________________.

• Skewed left

• Skewed right

Tags

CCSS.6.SP.A.2