Which of the following best describes a cumulative frequency distribution?

What is a frequency distribution?

If the class limits are 10-19, 20-29, and 30-39, what is the class width?

The upper class limit is:

How do you calculate the class boundaries?

What is the midpoint of a class interval?

What is the measure of central tendency that is calculated by summing all the values in a data set and dividing by the number of values?

Given the data set: 3, 7, 7, 2, 9, what is the mode?

For the data sets: 4, 8, 6, 5, 3, what is the median?

In a data set where every value is identical, which measure of central tendency is typically used?

Given the following data set: 2, 4, 4, 6, 8, 10, 12, what is the mean?

Which measure of central tendency is most affected by extreme values (outliers) in a data set?

For the data set: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, what is the median?

What is the measure of variability that represents the difference between the highest and lowest values in a data set?

Given the data set: 5, 8, 12, 15, 20, what is the range?

What measure of variability is calculated by taking the square root of the variance?

For the data sets: 2, 4, 6, 8, 10, what is the variance? (Use the sample variance formula.)

What does the standard deviation measure?