7. a) Compute Cz using the factorial formula. b) Compute 5C2 "by hand," using the 5 letters ABCDE and writing down all the possible ways to choose 2 of those letters. The total number of two letter combinations will equal the value you found in part (a).

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7. a) Compute 5C2 using the factorial formula.
b) Compute 5C2 "by hand," using the 5 letters ABCDE and writing down all the possible ways to choose
2 of those letters. The total number of two letter combinations will equal the value you found in part (a).
Transcribed Image Text:7. a) Compute 5C2 using the factorial formula. b) Compute 5C2 "by hand," using the 5 letters ABCDE and writing down all the possible ways to choose 2 of those letters. The total number of two letter combinations will equal the value you found in part (a).
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