If Events a and B Are Mutually Exclusive and Collectively

question 144

Multiple Choice

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

• A)0.25
• B)0.50
• C)1.00
• D)Cannot be determined from the information given.

---

Definitions:

Set Like Plaster

A theory suggesting that personality traits become fixed and less susceptible to change after a certain age.

Personality Development Research

The study of how personality traits and characteristics evolve and change over the course of a person's life.

Cohort Differences

Cohort differences refer to variations in characteristics, attitudes, or experiences among groups of individuals who were born around the same period.