Math Problem Statement

A box contains cards that are numbered from 1 to 100. What is the probability of randomly selecting a number that is less than 12?

Solution

The question asks for the probability of randomly selecting a number less than 12 from a set of numbers numbered 1 to 100.

Solution:

  1. Total Outcomes: The numbers range from 1 to 100, so there are 100 possible outcomes.
  2. Favorable Outcomes: Numbers less than 12 are 1,2,3,,111, 2, 3, \ldots, 11, which are 11 numbers in total.

The probability is calculated as: P=Favorable OutcomesTotal Outcomes=11100P = \frac{\text{Favorable Outcomes}}{\text{Total Outcomes}} = \frac{11}{100}

Correct Answer:

The correct option is: 11100\frac{11}{100}.

Would you like further clarification or a breakdown of probability concepts?


Here are 5 follow-up questions to expand your understanding:

  1. How would the probability change if the range of numbers increased to 1-200?
  2. What is the probability of selecting a number greater than or equal to 12?
  3. How does this probability compare with the complement of PP?
  4. How would you calculate the probability of selecting an even number less than 12?
  5. Can you generalize this probability formula for any range and cutoff value?

Tip: Always confirm the total and favorable outcomes before solving probability questions!

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Math Problem Analysis

Mathematical Concepts

Probability
Favorable Outcomes
Total Outcomes

Formulas

P = Favorable Outcomes / Total Outcomes

Theorems

Basic Probability Rule

Suitable Grade Level

Grades 6-8