Practice Calculating K-permutations (11.3) - Permutation and Combination

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6 sample questions

Question 1.
How many different 2-permutations can be made from the set {1, 2, 3}?
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Use the formula for k-permutations.
Question 2.
What is P(4, 2)?
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Calculate using 4! / (4-2)!
3Question 3.
What is the formula for calculating k-permutations?
- P(n
- k) = n! / (n-k)!
- P(n
- k) = n! / k!
- P(n
- k) = k! / n!
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Remember how factorial impacts the arrangement.
4Question 4.
T/F: Repetitions are allowed in permutations?
- True
- False
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Consider example scenarios involving elements repeatedly arranged.
Question 5.
You are organizing a race with 5 racers. How many different finishing orders are possible?
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Remember to apply the formula for full arrangements.
Question 6.
If you draw 4 balls from an urn containing 10 different colored balls, how many different arrangements can you make?
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Identify how many you are arranging against the total available.

4 more questions in this section. Enroll free to practise them all.