Ask Question
12 May, 22:56

There are 15 students in a social studies class. Two students will be selected to present their term projects today. In how many different orders can two students be selected?

+2
Answers (1)
  1. 13 May, 01:27
    0
    Given:

    15 students

    2 students must be chosen.

    No repetition, no order

    This is a combinations problem. We use this formula: n! / (n-r) ! (r!)

    n = 15; r = 2

    15! / (15-2) ! (r!) ⇒ 15! / 13! * 2! = 105
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “There are 15 students in a social studies class. Two students will be selected to present their term projects today. In how many different ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers