variance

Which of the following is not a measure of dispersion?

• range

• variance

• standard deviation

• mode

Tags

CCSS.6.SP.A.3

Which of the measures of dispersion only uses two values in the distribution?

• range

• standard deviation

• variance

• mean deviation

Tags

CCSS.6.SP.B.5C

If two data sets have the same mean, then these sets also have the same standard deviations.

• true

• false

Which of the following is a characteristic of the range? Check all that apply.

• All values in the distribution are used in the calculation.

• It is influenced by extreme values.

• It is dependent on the mean.

• It is easy to compute and to understand.

Tags

CCSS.6.SP.A.3

What is the range of 45, 56, 23, 74, and 63?

• 18

• 51

• 23

• 56

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is the variance for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 47.47

• 102.01

• 52.77

• 81

Calculate the standard deviation for the following data.

• 2.928

• 4.848

• 5.148

• 6.227

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

• 511.33

• 22.61

• 438.48

• 20.94

State the midpoint of the class interval (3.8 – 5.2).

• 3.8

• 4.5

• 4.6

• 5.2

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

It is defined as the square root of the variance.

• coefficient of variation

• midrange

• standard deviation

• kurtosis