Statistics Unit Review

The data from how many students was recorded on this histogram?

• 43

• 4

• 60

• 15

Find the median of that data on this frequency table.

• 20

• 45

• 30

• 18

What is the difference between a statistical question and one that is not statistical?

• The answers can show you how many of something.

• Answers of statistical questions have variability (many answers). Non-statistical have no variability (one answer).

• There are no answers to statistical questions.

• Statistical questions are harder!

What is the mode for this data set?

• 3

• 7

• 7.5

• 9

What is the mean of this data set?

• 43

• 46

• 567

• 63

What is the mean of the data, rounded to the nearest tenth?

• 6.0

• 8.0

• 9.3

• 6.8

What are the values for the five number summary?

• 2,4,6,8,10

• 0, 3,5,11,20

• 2, 2.5, 4.5, 10.5, 18

• 2, 3, 5, 11, 18

• Mean will decrease.

• Mean will increase.

• Mean will stay the same.

• Use the mean, the teacher's age, an outlier, won't affect the mean as much as the other measures.

• Use the median so the teacher's age, an outlier doesn't affect the middle.

• Use mode, the number on the list the most is best.

How many pieces of data are shown on this dot plot?

• Max. - Min = 6-0=6

• 17, I counted the data

• 2, it is in the middle