Ask Question
30 July, 21:11

Let the random variable x be equally likely to assume any of the values 1/11, 2/11, or 3/11. determine the mean and variance of x.

+5
Answers (1)
  1. 30 July, 21:35
    0
    Mean of x = (1/11 + 2/11 + 3/11) / 3 = 6/11 / 3 = 2/11

    variance

    1/11 - 2/11 = - 1/11; 2/11 - 2/11 = 0; 3/11 - 2/11 = 1/11

    (-1/11) ^2 = 1/121, 0^2 = 0, (1/11) ^2 = 1/121

    1/121 + 0 + 1/121 = 2/121

    Variance = 1/121 / 3 = 1 / 363
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Let the random variable x be equally likely to assume any of the values 1/11, 2/11, or 3/11. determine the mean and variance of x. ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers