If Events a and B Are Mutually Exclusive and Collectively

question 84

Multiple Choice

If events A and B are mutually exclusive and collectively exhaustive, what is the probability that
Event A occurs?

• A) 0.
• B) 0.50.
• C) 1.00.
• D) Cannot be determined from the information given.

---

Definitions:

Normally Distributed

Refers to data that fall in a bell curve pattern centered around the mean, used to describe a distribution in statistics.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values deviate from the mean of the set.

Mean

The arithmetic average of a set of numbers, representing the central location within that dataset.

Standard Normal

Refers to a normal distribution with a mean of zero and a standard deviation of one, serving as a basis for comparing other normal distributions.