01 Basic Measures of Variation

Which of the following is a measure of variation?

• Mean

• Median

• Mode

• Range

Tags

CCSS.6.SP.A.3

True or False: Each data point has its own deviation.

• True

• False

What is the correct expression to find deviation?

• $x-mean$

• $\frac{SS_x}{N}$

• $\frac{SS_x}{\left(n-1\right)}$

• $\sqrt{\sigma^2}$

Tags

CCSS.HSS.ID.A.4

The sum of the deviation column should equal...

• 0

• 1

• $n$

• $SS_x$

What isn't allowed in the $\left(d_x\right)^2$  column?

• positives

• negatives

• fractions

• decimals

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.6

The sum of the  $\left(d_x\right)^2$   column equals...

• 0

• 1

• $n$

• $SS_x$

True or False: The mean is calculated differently depending on if you have a population or a sample.

• True

• False

Tags

CCSS.6.SP.B.5C

True or False: The variance is calculated differently depending on if you have a population or a sample.

• True

• False

Fill in the blank: Data points that are less than the __________________ have a __________________ deviation.

• mean; negative

• mean; positive

• median; negative

• median; positive

Tags

CCSS.6.SP.A.3

CCSS.6.SP.A.2

CCSS.6.SP.B.5

Fill in the blank: Data points that are greater than the __________________ have a __________________ deviation.

• mean; negative

• mean; positive

• median; negative

• median; positive

Tags

CCSS.6.SP.A.3