Standard deviation

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1
• 6
• 4.5
• 4

Tags

CCSS.7.NS.A.3

What is the mode?

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

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

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%
• 95%
• 99.7%
• 50%

Tags

CCSS.HSS.ID.A.4

What does this symbol represent?

• Standard Deviation

• Variance

• Mean Absolute Deviation

• Median

What is the purpose of z-scores?

• to describe the exact location of a score within a distribution

• to find the mean of the distribution

• to describe the shape of the distribution

• to find the standard deviation of the distribution

What is the formula to find the z-score for population?

• z=X-M

• z=σ-M/μ

• ^z/M=μ

• z=X-μ/σ

Tags

CCSS.HSS.ID.A.4