class 12

Math

Algebra

Probability I

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 APIs $851 $.Statement-2: If the four chosen numbers from an AP, then the set of all possible values of common difference is {1, 2, 3, 4, 5}.