Quantitative Methods Q196

196A discrete uniform distribution consists of the following 12 values: 2.0, 6.2, -1.5, 2.4, 9.0, 4.1, -3.2, -1.0, 5.5, 8.2, 4.5 and 0.8 The probability of a value lying between -3.0 and 1.0 in a single draw from the distribution is closest to:

Option : B
Explanation : First order the values from smallest to largest. Then note that three of the twelve values are between -3.0 and 1.0. Thus, the probability of a draw from the distribution being between -3.0 and 1.0 is 3/12 = 0.25.

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