2016 · Q95
Suppose xᵢ = 1/i for i = 1, 2, 3, …, 11. Which one of the following is not correct?
Elementary MathematicsStatistics
- AAM > 1/6
- BGM > 1/6
- CHM > 1/6
- DMedian = HM
Explanation
HM = 11/(1+2+…+11) = 11/66 = 1/6. So 'HM > 1/6' is false, while AM > 1/6 and GM > 1/6 are both true. Also Median = 6 and HM = 1/6 coincide. The not-correct statement is option C.