Mathematics · Statistics
20 प्रेक्षणों का माध्य और मानक विचलन क्रमशः 10 और 2 पाया गया। पुनः जाँच करने पर यह पाया गया कि गलती से एक प्रेक्षण 12 के बजाय 8 ले लिया गया था। सही मानक विचलन है:
- 1√4.16
- 2√3.96✓
- 31.80
- 4√3.86
सही उत्तर देखें
√3.96
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