Math Problem Statement

Henry rolls a fair six-sided die. For each pair of events below, decide whether the events are mutually exclusive. If the events are not mutually exclusive, give an example to show why.

Solution

Let's analyze the events to determine whether they are mutually exclusive for each pair. Mutually exclusive events cannot occur simultaneously.

Pair A: Rolling an odd number vs. Rolling an even number

  • Odd numbers on a six-sided die: {1, 3, 5}
  • Even numbers on a six-sided die: {2, 4, 6}
  • Since no number can be both odd and even, these events are mutually exclusive.

Pair B: Rolling an even number vs. Rolling a prime number

  • Even numbers on a six-sided die: {2, 4, 6}
  • Prime numbers on a six-sided die: {2, 3, 5}
  • The number 2 is both even and prime. Hence, these events are not mutually exclusive.
    Example: Rolling a 2 satisfies both events.

Pair C: Rolling an odd number vs. Rolling a number larger than 4

  • Odd numbers on a six-sided die: {1, 3, 5}
  • Numbers larger than 4 on a six-sided die: {5, 6}
  • The number 5 is both odd and larger than 4. Hence, these events are not mutually exclusive.
    Example: Rolling a 5 satisfies both events.

Let me know if you'd like further clarification or examples!


Related Questions:

  1. What are mutually exclusive events, and how do we formally define them in probability?
  2. Can you provide more examples of mutually exclusive and non-mutually exclusive events with dice rolls?
  3. How would you calculate the probability of two mutually exclusive events occurring?
  4. How do you calculate the probability of non-mutually exclusive events using the addition rule?
  5. Can mutually exclusive events also be independent? Why or why not?

Tip:

When analyzing events, always check their intersection (shared outcomes). If the intersection is empty, the events are mutually exclusive.

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Math Problem Analysis

Mathematical Concepts

Probability
Mutually Exclusive Events

Formulas

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Theorems

Mutually Exclusive Events Definition

Suitable Grade Level

Grade 7-8