Unit 6 Statistics Review

Which question would give the best statistical data?

• What type of ice cream do you like the best?

• Who ran the mile the fastest in gym?

• What were the scores on the math test?

Which is not a measures of center?

• Mean

• Median

• Mode

• Range

Which central tendencies are measure of variation?

• Mean

• Range

• Interquartile Range

• Median

The table shows the number of points scored by the Spurs in their last 4 basketball games. What is the range of the four games listed?

• 28

• 12

• 89

1. Using the table from question 4, how many points do the Spurs need to score in game 5 to have a mean score of 90? Use algebra!

• 450

• 90

• 77

• 100

Find the Interquartile Range (IQR) for the data set: {9,7,9,16,12,15,18}

• 25

• 7

• 11

• 4

Find the mean of the set of data {2,3,6,7,12,15,18}

• 7

• 63

• 9

• 16

Find the median according to the line plot below

• 17

• 15

• 15.5

• 16

Using the line plot , what is the range of data?

• 12

• 17

• 11

• 20

Mrs. K’s science class takes a test. The mean score on the test is 88% and the median score is 86%. Johnny was absent and takes his test the next day and scores a 40%. What statement reflects most accurate change in the data?

• The range will decrease.

• The median will decrease a large amount

• The mean will decrease a large amount.

• Mrs. K’s tutoring class size will increase