02 Estimating Variation from a Freq. Table (no shuffle or rq)

This is a different type of Quizizz. Your answers to some problems will be needed to answer subsequent problems, so be sure to save and number your work. Do you understand?

• Yes

• No

What does the sum of the $f$  column represent?

• The number of data points in the set

• The number of classes in the table

• The cumulative weight

• None of these

Tags

CCSS.6.SP.B.5A

What is the correct expression to estimate the Sum of Squares from a frequency table?

• $\Sigma\left[\left(d\right)^2\cdot f\right]$

• $\Sigma\left[\left(d\right)^2\right]$

• $\Sigma\left[\left(d\right)^2\cdot x\right]$

• $\Sigma\left[\left(d\right)^2\cdot w\right]$

If you want to check your estimation work, what column do you have to add to the table?

• $cf$

• $d\cdot f$

• $rf$

• $\theta$

Tags

CCSS.HSS.IC.B.4

Estimate the mean of the population data set represented by this frequency table.

• 11.0

• 81.0

• 8.1

• 11.2

Tags

CCSS.6.SP.B.5C

Estimate the sum of squares of the population data set represented by this frequency table.

• 508

• 40

• 893

• 55

Estimate the variance of the population data set represented by this frequency table.

• 508

• 101.6

• 6.35

• 6.27

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

Estimate the standard deviation of the population data set represented by this frequency table.

• 6.27

• 2.50

• 1.25

• 31.35

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

Estimate the mean of the sample data set represented by this frequency table.

• 194.6

• 240.0

• 460.7

• 167.5

Tags

CCSS.6.SP.B.5C

Estimate the sum of squares of the sample data set represented by this frequency table.

• 73,295.84

• 18,323.96

• 3,186.78

• 3,0563.99