04 Measures of Variation Unit Review

The deviation (d_x) of a data point "x" is...

• The value of that data point minus the mean
• The mean minus the value of that data point
• The value of that data point minus the median
• The median minus the value of that data point

Σd=

• 0
• 1
• SS_x
• n

Σ(d²) =

• SS_x
• 1
• 0
• n

Tags

CCSS.HSS.ID.A.4

What is the symbol for population variance?

• σ²
• N
• s²
• SS_x

What is the symbol for sample variance?

• σ²
• N
• s²
• SS_x

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the symbol for Sum of Squares ?

• σ²
• N
• s²
• SS_x

What is the formula to find population variance?

• SS_x/N
• SS_x/(n-1)
• Σd
• Σ(d²)

What is the formula to find sample variance?

• SS_x/N
• SS_x/(n-1)
• Σd
• Σ(d²)

Standard deviation is always the __________ of variance.

• square root
• square
• median of
• mean of

What is another name for the greatest element in a data set?

• Maximum
• Minimum
• Median
• Mode

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5