If a random integer from 1 to 3 is chosen, what is P(1 or 2)?

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Study for the 8th Grade FAST Mathematics Pre-Algebra Test. Enhance your skills with interactive flashcards and multiple choice questions, each containing hints and explanations to boost your comprehension and readiness for the exam. Get ready to ace your test!

Multiple Choice

If a random integer from 1 to 3 is chosen, what is P(1 or 2)?

Explanation:
When you pick a random integer from 1 to 3, there are three equally likely outcomes: 1, 2, or 3. The event "1 or 2" includes two of these outcomes. So the probability is the number of favorable outcomes divided by the total number of outcomes: 2 out of 3, or 2/3. The chance of getting 3 alone would be 1/3, and it's not always true, so 1 is not correct. Thus the probability is 2/3.

When you pick a random integer from 1 to 3, there are three equally likely outcomes: 1, 2, or 3. The event "1 or 2" includes two of these outcomes. So the probability is the number of favorable outcomes divided by the total number of outcomes: 2 out of 3, or 2/3. The chance of getting 3 alone would be 1/3, and it's not always true, so 1 is not correct. Thus the probability is 2/3.

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