Standard Deviation

If a number is added to a set that is far away from the mean, how does this affect standard deviation?

• increase
• decrease
• stay the same
• both increase and decrease

• Skewed Right
• Skewed Left
• Uniform
• Symmetric

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.2

CCSS.6.SP.A.1

• Skewed Right
• Skewed Left
• Uniform
• Symmetric

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.2

CCSS.6.SP.A.1

Between what two standard deviations of a normal distribution contain 68% of the data?

• one below and one above
• two below and two above
• two below and zero
• zero and two above

Tags

CCSS.HSS.ID.A.4

Which is NOT true about the standard normal distribution?

• It is bell-shaped.
• It is unimodal.
• The mean is 0 and the standard deviation is 1.
• It is asymmetrical.

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

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.6.NS.B.3

The standard deviation for 4 data sets are shown.  Which has all of the data points the same as the mean?
A          4.3
 B           2.7
C             0
D            6

• A
• B
• C
• D

Which of the following is a measure of variability?

• mean
• median
• mode
• standard deviation

If 10 is added to every value in a set of data, what will happen to the value of the standard deviation?

• it will increase
• it will decrease
• it will stay the same
• it will both increase and decrease

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

What is the median?

• 62
• 58
• 66
• 60

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.2

CCSS.6.SP.A.3