STAT 210 Test 2

What symbol is used to denote the sample mean?

• μ

• η

• M

What symbol is used to denote the sample standard deviation?

• s

• σ

• median location

• the median

• the mean

• the sample size

Which measure of spread is resistant to outliers?

• IQR

• standard deviation

• variance

• range

Which of the following is NOT required to fully describe a distribution?

• center

• spread

• number of data points

• unusual features

• shape

What is the shape of the distribution?

• Skewed Left 
• Skewed Right
• Symmetric
• Bimodal

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.5

What is wrong with this stem and leaf plot?

• nothing

• rule is not stated

• number of stems

• order

Tags

CCSS.6.SP.B.4

CCSS.6.SP.B.5

How many stems should a stem-and-leaf plot have?

• between 2-5

• between 15-25

• between 6-20

• between 10-15

Which of the following is characteristic of a long-tailed distribution

• symmetric with no outliers

• outliers only on the left end

• outliers only on the right end

• symmetric with outliers on both ends

Which measure of center should be used when describing this graph?

• median

• mean

• standard deviation

• IQR