Math Problem Statement
Solution
The problem in the image asks about the probability that two people (Rebecka and Aaron) each select a poodle at random without replacement from a group of 11 puppies. There are 2 poodles, 5 terriers, and 4 retrievers in the group.
To solve the problem, let's calculate the probability step by step:
- Total Puppies: 11 puppies in total.
- First Selection (Rebecka):
- The probability that Rebecka selects a poodle is the ratio of poodles to the total puppies:
- Second Selection (Aaron):
- After Rebecka picks a poodle, only 10 puppies remain, and there is now only 1 poodle left.
- Combined Probability: Since both events are independent and without replacement, we multiply the probabilities:
So, the probability that both Rebecka and Aaron select a poodle is .
Would you like more details or have any questions about this?
Here are five related questions you could explore:
- What is the probability that both Rebecka and Aaron select terriers?
- How does the probability change if there were 3 poodles instead of 2?
- What is the probability that neither of them selects a retriever?
- What if there were replacement—how would the probability change?
- What is the probability that at least one of them selects a poodle?
Tip: Always double-check if the scenario involves replacement or no replacement, as it significantly affects the probability calculation.
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Math Problem Analysis
Mathematical Concepts
Probability
Combinatorics
Formulas
Probability formula: P(A and B) = P(A) * P(B after A)
Theorems
Multiplication rule for independent events
Suitable Grade Level
Grades 10-12
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