# Applying Conditional Probability & Independence to Real Life Situations

Instructions:

question 1 of 3

### Sally is selling strawberry and regular lemonade at her stand. Out of all of the customers that bought her lemonade, 50% like regular lemonade and 30% like strawberry and regular lemonade. So if one of Sally's customers likes regular lemonade, what's the probability that they'll also like strawberry lemonade?

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### 2. James is going through an old bag of marbles. He bets his friends that he can pull a red marble out of the bag and then a yellow marble in one try. There are 12 red marbles and 7 yellow marbles. What is the probability that he can pull a yellow from the bag, given that he has already pulled a red?

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This quiz and corresponding worksheet will help you gauge your understanding of what conditional and independent probability are based on real-world situations. Topics you'll need to know to pass the quiz include finding the probability of a situation with or without conditions.

## Quiz & Worksheet Goals

Use these assessment tools to assess your knowledge of:

• The probability of a situation dependent on a condition
• The probability of a situation not dependent on a condition
• The term for probability that isn't affected by a previous event
• The term for the probability of a second event, given a first event has already occurred

## Skills Practiced

This worksheet and quiz will let you practice the following skills:

• Reading comprehension - ensure that you draw the most important information from the related lesson on real life applications of conditional probability and independence
• Interpreting information - verify that you can read information regarding real-world probability scenarios and interpret it correctly
• Problem solving - practice solving probability problems