What are the possible values that probability, p, can take?

Group of answer choices

-1 to 1

0 to 0.5

0 to 1

-2 to 2

The normal curve is also a ....

Group of answer choices

Rectangular distribution

Freak of nature

Skewed distribution

Probability distribution

Why is the normal curve so common in nature??

Group of answer choices

Data has a tendency to cluster around the average

The mean of any curve will always be in the middle

Observations in nature are never skewed

No one actually knows; it's just the way it happens to be

At a particular small college there are 200 students majoring in natural sciences, 300 in social sciences, 250 in humanities, and 250 in other majors. Suppose you are going to select a student at random to interview about the college.What is the probability this student would be someone majoring in either social sciences or humanities?

Group of answer choices

5

.6

.55

.45