Stats Ch 2 Notation

What does this symbol represent?

• mean of the parameter

• mean of a population

• mean of a sample

• mean of a proportion

What does this symbol represent?

• sample mean

• population standard deviation

• population mean

• sample mew

What does this symbol represent?

• population proportion

• parameter

• sample proportion

• population sample

What is the difference between the highest score and the lowest score on the test?

• 15

• 100

• 6

• 10

How many students scored more than 80%?

• 10

• 13

• 7

• 15

What is the highest quiz grade in the stem and leaf plot?

• 9

• 26

• 92

• 96

Find the mean.

• 3

• 8

• 6

• 1

Find the mean.

• 3

• 6

• 1

• 9

How many students are represented by the histogram?  

• Cannot be determined

• 9

• 31

• 35

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease

• The median will decrease

• The mean will increase

• The median will increase