# How to Calculate the Probability of Combinations

Instructions:

question 1 of 3

### A newspaper company is selecting four houses to receive a free newspaper on your block. There are 10 houses on your block that are numbered 1-10. What is the probability that the four houses selected for a free newspaper will all be even numbered houses?

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### 2. Jane has cards with the letters ALABAMA on them. She lays the cards face down. What is the probability of Jane selecting two cards and both of them being a vowel?

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This quiz and worksheet combo will help you quickly assess your understanding of the probability of combinations. You'll have to know and manipulate related formulas to solve practice problems in order to pass the quiz.

## Quiz & Worksheet Goals

In particular, practice problems on this quiz focus on:

• Probability
• Combinations
• Factorials

## Skills Practiced

Students can sharpen these skills:

• Information recall - access the knowledge you have gained regarding factorials
• Problem solving - use your knowledge to solve combination practice problems using the appropriate formula