Math Problem Statement

Select three statements that are true about the spinner divided into 8 congruent sections labeled with numbers 1, 2, 3, and 4.

Solution

The spinner in the image is divided into 8 equal sections, labeled with the numbers 1, 2, 3, and 4. Let's analyze the distribution of these numbers:

  • Number 1 appears twice.
  • Number 2 appears once.
  • Number 3 appears twice.
  • Number 4 appears twice.

Analysis of Each Statement

  1. You are equally likely to spin a 3 as spin a 4.

    • True: Both 3 and 4 each have 2 sections, so the probability of spinning a 3 or a 4 is the same.
  2. You are 3 times more likely to spin a 3 than a 1.

    • False: Both 3 and 1 have the same number of sections (2 each), so they have equal probability.
  3. The sample space of the spinner is {1, 1, 1, 2, 3, 3, 4, 4}.

    • False: The correct sample space is {1, 1, 2, 3, 3, 4, 4}.
  4. You are more likely to spin a 2 than a 3.

    • False: There is only 1 section for 2, while there are 2 sections for 3, making 3 more likely than 2.
  5. You are equally likely to spin an even or odd number.

    • True: There are 4 sections with even numbers (two 4's and one 2) and 4 sections with odd numbers (two 1's and two 3's), so they are equally likely.
  6. Spinning a 1 is more likely than spinning any other number.

    • False: Both 1, 3, and 4 appear twice, so they all have the same probability.

Correct Answers

The three statements that are true about the spinner are:

  • You are equally likely to spin a 3 as spin a 4.
  • You are equally likely to spin an even or odd number.

Would you like more details or have further questions?


Here are 5 related questions that may enhance your understanding:

  1. How do we calculate probabilities based on the number of sections?
  2. What would happen if we added one more section with a new number?
  3. How can we determine the sample space in different probability setups?
  4. What is the probability of landing on a specific number if the sections are not congruent?
  5. How do even and odd probabilities change with different numbers?

Tip: Always count the frequency of each outcome to determine probabilities accurately.

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Math Problem Analysis

Mathematical Concepts

Probability
Sample Space
Event Probability

Formulas

Probability of event = (Number of favorable outcomes) / (Total outcomes)

Theorems

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Suitable Grade Level

Grade 5-7