A random sample of 40 college professors is selected from all professors at a university. The following list gives their ages.

66,46,40,48,36,58,46,47,46,23,58,69,50,45,64, 64,58,47,57,28,33,62,47,46,31,33,41,39,21,45, 62,30,35,49,22,37,44,31,36,50.

Construct a stem-and-leaf plot for the data. Complete parts a. and b.

a. Determine the leaves for each corresponding stem. Complete the table below.

(Use ascending order.)

	Stem	Leaves
	2	?

What is a population? What is a sample?

What is a population? Choose the correct answer below.

A.

A population is the set of all the properties that can be assigned to any people or objects in a given sample.

B.

A population is a set of data.

C.

A population is the set containing all the people or objects whose properties are to be described and analyzed by the data collector.

D.

A population is a group that exhibits characteristics typical of those possessed by the target sample.

Find the mean for the following group of data items.

135,75,105,75,95

The mean is ?

(Type an integer or a decimal.)

Find the mean for the data items in the given frequency distribution.

Score, x	1	2	3	4	5	6	7	8
Frequency, f	2	2	3	4	4	3	6	1

The mean is ?.

(Round to 3 decimal places as needed.)

Find the median for the following group of data items.

23,20,19,18,24,21,17,19

The median is ?.

(Type an integer or a decimal.)

This is 5 separate problems, thx!:)