73. If average of 20 observations x1, x2, ....., x20 is y, then the average of x1 – 101, x2 – 101, x3 – 101, ....., x20 –101 is / यदि 20 प्रेक्षणों x1, x2, ....., x20, का औसत y है, तो x1 - 101, x2 - 101, x3 - 101, ....., x20 -101 का औसत क्या होगा ?
y – 20
y – 101
20y
101y
Answer / उत्तर :- y – 101
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