If a and B Are Mutually Exclusive Events and Pr[A]

question 28

Multiple Choice

If A and B are mutually exclusive events and Pr[A] = 0.2 and Pr[B] = 0.3, then what is Pr[A and B]?

• A) 0
• B) 0.06
• C) 0.5
• D) 0.6

---

Definitions:

One-tail

Refers to a type of statistical test where the critical area of a distribution is one-sided so that it tests for the possibility of the relationship in one direction.

Two-tail

Refers to a type of statistical test that considers both the lower and upper tails of the distribution to determine significance.

Kruskal-Wallis Test

A non-parametric method for testing whether samples originate from the same distribution, used when the ANOVA assumptions are not met.

Wilcoxon Rank Sum Test

A non-parametric test used to compare two independent groups and determine if there are differences in their population median values.