1. A graphical method of representing the sample points of an experiment is a *

dot plot.

stem-and-leaf display.

stacked bar chart.

tree diagram

Which of the following symbols represents the size of the sample? *

^2

N

n

When a histogram has a longer tail to the left, it is said to be *

symmetrical.

skewed to the right.

skewed to the left.

none of these alternatives is correct.

If P(A) = 0.65, P(B) = 0.45, and P(A B) = 0.85, then P(A B) = *

.24

.21

.25

.27

A numerical value used as a summary measure for a sample, such as a sample mean, is known as a *

Population Parameter

Sample Parameter

Population Mean

Sample Statistic

From a group of five people, two individuals are to be selected at random. How many selections are possible? *

11

24

14

10

The variables whose calculation is done according to the height, length, and weight are categorized as *

Measuring Variables

Continuous Variables

Discrete Variables

Flowchart Variables