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What is the total number of different 10-letter arrangements that can be formed using the letters in the word STATISTICS?
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What is the total number of different 1010-letter arrangements that can be formed using the letters in the word STATISTICS?\newlineAnswer:

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Q. What is the total number of different 1010-letter arrangements that can be formed using the letters in the word STATISTICS?\newlineAnswer:
  1. Word Frequency: The word STATISTICS has 1010 letters in total, with the following frequency of each letter: SS occurs 33 times, TT occurs 33 times, AA occurs 11 time, II occurs 22 times, and CC occurs 11 time.
  2. Permutations Formula: To find the total number of different arrangements, we use the formula for permutations of a multiset: n!n1!×n2!××nk!\frac{n!}{n_1! \times n_2! \times \ldots \times n_k!}, where nn is the total number of items to arrange, and n1n_1, n2n_2, \ldots, nkn_k are the frequencies of each distinct item.
  3. Calculation of Frequencies: In this case, n=10n = 10 (total letters), n1=3n_1 = 3 (for S), n2=3n_2 = 3 (for T), n3=1n_3 = 1 (for A), n4=2n_4 = 2 (for I), and n5=1n_5 = 1 (for C).
  4. Factorial Calculation: Now we calculate the factorial of each of these numbers: 10!=3,628,80010! = 3,628,800, 3!=63! = 6, 2!=22! = 2, and 1!=11! = 1.
  5. Application of Formula: We then apply the formula: 10!/(3!3!1!2!1!)=3,628,800/(66121)=3,628,800/72=50,40010! / (3! * 3! * 1! * 2! * 1!) = 3,628,800 / (6 * 6 * 1 * 2 * 1) = 3,628,800 / 72 = 50,400.
  6. Total Arrangements: Therefore, the total number of different 1010-letter arrangements that can be formed using the letters in the word STATISTICS is 50,40050,400.

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