Find the a) mean, b) median and quartiles (Q1 and Q3) and c) range and IQR.

10.0, 6.5, 2.0, 8.5, 8.5, 10.0, 9.5, 3.0, 6.5, 7.5, 8.5, 4.0, 7.5, 5.0, 5.5, 6.5, 5.5, 6.5, 6.5, 9.5

The mean is: (Round to two decimal places.)

b) The median is:. (Enter an integer or a decimal.)

The first quartile is Q1= (Enter an integer or a decimal.)

The third quartile is Q3= (Enter an integer or a decimal.)

The range is (Enter an integer or a decimal.)

The interquartile range is IQR= (Enter an integer or a decimal.)

Find the variance and standard deviation, correct to 2 decimal places.

Variance =

Standard deviation =

Make a Box Plot for this set of data.

Question two

a) Which of the following is an example of a sample mean?

A) In a company of 1250 workers, the average salary is $60,000

B) By surveying all Americans, one found that the average (mean) amount of time watching television is 4.6 hours per day.

C) Average IQ of some faculty and staff in a certain University is 90.

D) The average height of all students in a college is 5ft and 8 inches.