Statistics Review

A type of graph that is built by placing a marker above each member of the data set represented on a number line. The mode is most easily identified from this graph!

• line graph

• stem and leaf

• dot plot

• box plot

If you score 76, 85, 97, and 83 on your math tests, what would your median score be? 

• 84

• 90

• 85

• 88

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Find the mean of these numbers:
5, 11, 2, 12, 4, 2

• 4.1

• 6

• 4.5

• 4

• spread
• mean
• outlier
• median

What is the mode of the scores?

• 24

• 14

• 34

• 30

How many students have more than 1,000 songs on their MP3 player?

• 5

• 16

• 10

• 4

What measure of central tendency (mean, median or mode) would be best for the following set of data?
0, 89, 92, 97, 99, 100

• Mode, because it is the one that shows up the most.

• Median, because there is an outlier.  The outlier could be incorrect and would influence the mean too much.

• Mean, because there is not an outlier.  You should always use the mean.

• There is not a best measure of central tendency for this data.

Find the median: 12, 15, 13, 18, 23, 5?

• 14

• 16

• 16.5

• 18

What is the mode in the following numbers? [3, 24, 3, 7, 30, 1, 3, 7, 3]

• 3 and 7 both are modes

• 1 and 7 both are modes

• 3 only

• 7 only