Math Problem Statement

A standard 6-sided die is rolled. Find the probability of the given events: 1. The number showing is a 3; 2. The number showing is an even number; 3. The number showing is greater than 4.

Solution

Let's analyze the image. It shows a question about finding probabilities with a standard 6-sided die. Here's a breakdown of each part of the problem:

1. The number showing is a 3:

  • A standard die has 6 faces: 1, 2, 3, 4, 5, 6.
  • The probability of rolling a 3 is the number of favorable outcomes (1 outcome: rolling a 3) divided by the total number of outcomes (6 sides).

P(rolling a 3)=16P(\text{rolling a 3}) = \frac{1}{6}

2. The number showing is an even number:

  • The even numbers on a die are 2, 4, and 6. So, there are 3 favorable outcomes (2, 4, 6).

P(even number)=36=12P(\text{even number}) = \frac{3}{6} = \frac{1}{2}

3. The number showing is greater than 4:

  • The numbers greater than 4 are 5 and 6, so there are 2 favorable outcomes (5, 6).

P(number greater than 4)=26=13P(\text{number greater than 4}) = \frac{2}{6} = \frac{1}{3}

Summary of Answers:

  1. Probability of rolling a 3: 16\frac{1}{6}
  2. Probability of rolling an even number: 12\frac{1}{2}
  3. Probability of rolling a number greater than 4: 13\frac{1}{3}

Do you have any questions or would you like more details on these probabilities?

Here are 5 related questions to practice:

  1. What is the probability of rolling a number less than 3?
  2. If two dice are rolled, what is the probability that both show a 3?
  3. What is the probability of rolling an odd number on a standard die?
  4. What is the probability of rolling a prime number on a standard die?
  5. If the die is rolled twice, what is the probability that the second roll is greater than the first?

Tip: For any event involving a standard die, always divide the favorable outcomes by the total number of sides (which is 6).

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Math Problem Analysis

Mathematical Concepts

Probability
Basic Counting

Formulas

Probability formula: P(event) = favorable outcomes / total outcomes

Theorems

Basic probability theorem

Suitable Grade Level

Grades 6-8