standard deviation intro

What does this symbol represent?

• Standard Deviation
• Variance
• Mean Absolute Deviation
• Sigma

Which of the following is a measure of spread, or variability?

(select all that apply)

• Interquartile Range

• Standard Deviation

• Mean

• Median

• Range

Tags

CCSS.6.SP.A.3

What does standard deviation represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range, but with a bunch of other stuff going on.

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193
• 127
• 60
• 66

Tags

CCSS.7.NS.A.1C

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12, 10, 10, 10, 13, 12, 11, 13, 10

• 13
• 12
• 11
• 10

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Find the median of these numbers:
4, 2, 7, 4, 3

• 2
• 5
• 7
• 4

Tags

CCSS.6.SP.B.5C

What is the mean?

• # happening the most
• the number in the middle
• biggest-smallest
• the average

Tags

CCSS.6.SP.B.5C

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is the median?

• biggest- smallest
• average
• the middle #
• # that happens the most

Tags

CCSS.6.SP.B.5C

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4