Four numbers are chosen at random (without replacement) from the s | Filo

Class 12

Math

Algebra

Probability I

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150

Four numbers are chosen at random (without replacement) from the set {1, 2, 3, …, 20}.
Statement 1:
The probability that the chosen numbers when arranged in some order will form an A.P. is .
Statement 2:
If the four chosen numbers form an A.P., then the set of all possible values of common difference is .

542
150

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