Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Statistics & ProbabilityPermutations & Combinations
In how many ways can 2 students be chosen from a class of 20 students?
- A.$210$
- B.$380$
- C.$400$
- D.$190$Correct answer
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Practice these MCQs in the appQuick fact: The number of ways to choose 2 students from 20 is $190$.