QUESTION 11

Which of the following data can be classified as discrete?

The acceleration of your car.

The eye colors of his classmates.

The number of students in the class.

The height of all the people in your neighborhood.

QUESTION 12

The Sarasota Police Department collected data on the number of car accidents (X) that occur each day on a narrowing of Route 41. From these data they derived the probability distribution shown in the following table.

X P (X)

0 0.80

1 0.15

2 0.05

What is the expected average number of accidents that occur each day?

0.50

0.25

0.33

1.00

QUESTION 13

The set of all students considered in a study constitute:

Descriptive statistics

a sample

a population

a census

QUESTION 14

The area under a curve of a normal distribution is

Equal to 100

almost equal to 1

equal to 1

equal to .5