CA Foundation P3 · Chapter 13 · Question 6 of 9
The number of possible samples of size 3 that can be drawn without replacement from a population of 10 units (order not considered) is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: A) 120
Explanation
Without replacement and ignoring order, the number of samples is ¹⁰C₃ = 10 x 9 x 8 / 6 = 120. With replacement and order considered it would be 10³ = 1,000, and ¹⁰P₃ = 720 counts ordered samples.
More Statistical Description of Data and Sampling MCQs
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