Algebra Data Statistics

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

What number is the peak?

• Less than 15

• 50

• Greater than 65

• 60

The number that appears in the set of data the most is called the

• mean

• mode

• median

• range

The number in the middle of the set of data is called the

• mean

• mode

• median

• range

Find the mode: 10, 11, 8, 14, 12, 8, 4, 5

• 72

• 8

• 9

A teacher made the following graph showing absences vs. final grades. Predict the grade of a student that has 7 absences.

• 50

• 45

• 70

• 60

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

• All of the above

Describe the gaps in the distribution.

• There are no gaps in the data.

• There is a gap at 2.7

• There is a gap at 2.1

What is the interquartile range of the data?

• 8

• 9

• 13

• 21