When tested, the lives (in hours) of 5 bulbs were noted as follows : 1357, 1090, 1666…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
When tested, the lives (in hours) of 5 bulbs were noted as follows :
1357, 1090, 1666, 1494, 1623
The mean deviation (in hours) from their mean is
1357, 1090, 1666, 1494, 1623
The mean deviation (in hours) from their mean is
- 178
- 179
- 220
- 356
Answer
(A) 178
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