20 प्रेक्षणों का औसत मान 75 प् – McqOptions

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1.	20 प्रेक्षणों का औसत मान 75 प्राप्त हुआ \| बाद में पता चला कि उनमें 97 को 79 पढ लिया गया था \| तदनुसार सही औसत मान कितना था ?
A.	23
B.	56
C.	75.9
D.	89
Answer» D. 89

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