Statistics Quiz

What is the median?

• The number in the middle when the numbers are in order from least to greatest.

• The difference between the largest and smallest number.

• The average

• The number that appears most often.

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

• 2.
• The smallest number
• The largest number
• The number of items in the set.

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

• 39

• 36

• 52

The heights of some students are given.

158cm 172cm 164cm

164cm 167cm 159cm

What is the RANGE of the heights?

• 13 cm

• 330 cm

• 164 cm

• 14 cm

What is the MEDIAN of this set of data?

10, 90, 80, 60, 50, 40, 70, 30, 20, 100

• 50

• 60

• 55

• 45

What type of correlation does this graph have?

• Negative

• no association

• positive

What type of correlation does this scatter plot show?

• positive

• negative

• no correlation

• nonlinear association

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours

• 35 hours

• 45 hours

• 15 hours

What is the MEDIAN of this data

• 95
• 90
• 100
• 40

How many students spent 7 hours doing homework that week?

• 1
• 3
• 5
• 6