Question
Statistics for Economics Question on Probability
Two distinct integers are chosen randomly from 5 consecutive integers. If the random variable x represents the absolute difference between them, then the mean and variance of x are, respectively,
A
1 and 3/ 2
B
2 and 5
C
1 and 3
D
2 and 1
Answer
2 and 1
Explanation
Solution
The correct answer is (D): 2 and 1