Measures of Position

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

What is the mode?

• happening the most

• the average

• biggest - smallest

• the middle #

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24

• 36

• 39

• 52

What measures of position divides the distribution into 100 equal parts?

• percentiles

• quartiles

• deciles

• range

The heights, in feet, of random samples of trees from three forests are shown. Move each measure into the table to identify which forest is expected to have the greatest measure of center and which forest is expected to have the greatest measure of variability based on the samples.

a

b

c

-

greatest variability

greatest measure of center

What measures of position divides the distribution into 10 equal parts?

• deciles

• quartiles

• percentiles

• range

What measures of position divides the distribution into 4 equal parts?

• quartiles

• deciles

• percentiles

• range

The best description of the data is ​ (a)   . ​ ​ The most appropriate measure of center is the​ (b)   . The most appropriate measure of variability is the ​ (c)   .

• range

• mean

• IQR

• median

• skewed right

• symmetric

• symmetric with an outlier

• skewed left