Algebra Data Statistics

A perfect positive correlation has a correlation coefficient of ____. 

• 1

• -1

• 0

Find the Median of the data set

• 82

• 86

• 88

• 92

Find the Mean of the data set

• 82

• 86

• 88

• 92

Find the Mode of the data set

• 82

• 86

• 88

• 92

Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• 7

• 7.44

• 8

• 7 and 8

The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?

• The mean would not change

• The mean would go up

• The mean would go down

Which class has the higher median?

• 1st period

• 2nd period

• They have the same median

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%

• 14%

• 13%

• 29%

Calculate the mean and median for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• mean: 7 median: 7

• mean: 7.44 median: 8

• mean: 7 median: 7.44

• mean: 7.44 median: 7

• 3
• 6
• 9
• 12