12 A random sample of 2 measurements is taken from the follo

12) A random sample of 2 measurements is taken from the following population of values: -2, -1, 1, 2, 5. What is the probability that the range of the sample is 1?

Solution

THERE ARE TOTAL 5 OBSERVATION

PROBABILITY = TOTAL FAVORABLE CASES/TOTAL CASES

HERE WE NEED TO FIND THE PROBABILITY OF 1

P(1) = 1/5 = 0.2