Variance and Standard Deviation Assessment

What does "n" represent?

• Total Frequency

• width

• midpoint

• mean

What is the class width of the given GROUPED Freq. Dist.

• 9

• 10

• 8

• None of the above

For the given Grouped Freq. Dist. Find the Midpoints

• 4, 14, 24, 34, 44

• 5, 15, 25, 35, 45

• 4.5, 14.5, 24.5, 34.5, 44.5

• None of the above

What is the n for the given GROUPED freq. distribution

• 60

• 122.5

• 120

• 63

What are the values of each of rows for (Xm*f)?

• 72, 252, 216, 306, 396

• 81, 261, 220.5, 310.5, 400.5

• None of the above 

Tags

CCSS.HSS.MD.A.2

FInd the Mean of the given data

• 20.2

• 20.7

• 14.1

• 13.99

Tags

CCSS.7.SP.B.4

Given the data find the POPULATION standard Deviation by Calculator.

• 14.1

• 20.2

• 14.0

• 13

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

For the following data find the SAMPLE standard Deviation by Calculator

• 20.2

• 13

• 14.1

• 13.99

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.4

For the following data find the POPULATION VARIANCE by calculator

• 199.078341

• 195.9183673

• 14.1

• 13.99

Tags

CCSS.HSS.ID.A.4

For the following data find the SAMPLE VARIANCE using the calculator

• 199.078341

• 195.9183673

• 14.1

• 13.99

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4