ApopulationofN=10scoreshasameanof
μ = 6. After one score is removed, the mean is found to be M = 5.
What is the value of the score that was removed?
6 * 10 = 60
(60-y)/9 = 5
60-y = 45
60-45 = y
15 = y
The value of the score that was removed 15