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Question: 35 Numeric 6 points How many unique letter sequences (orderings) can you make from the letters of…
35 Numeric 6 points
How many unique letter sequences (orderings) can you make from the letters of the word: ASSESSMENT
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Solution
To determine how many unique letter sequences can be made from the word “ASSESSMENT,” we need to account for the repeated letters. 1. Count the total number of letters in “ASSESSMENT”: \[ 9 \] 2. Identify the frequency of each repeated letter: - S appears 3 times - E appears 2 times 3. Apply the permutation formula for repeated items: \[ \frac{9!}{3! \cdot 2!} \] 4. Calculate \(9!\): \[ 9! = 362880 \] 5. Calculate \(3!\): \[ 3! = 6 \] 6. Calculate \(2!\): \[ 2! = 2 \] 7. Divide by the factorials of the repeated letters: \[ \frac{362880}{6 \cdot 2} = \frac{362880}{12} = 30240 \] The number of unique sequences is 30240.