AP EAMCET · Maths · Statistics
If the mean of a data is and if all the observations are multiplied by , then the mean of new data is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
Let x1, x2, x3, ......xn be the observations ∴ Mean =x1+x2+x3+.....+xnn ∴ 10=x1+x2+x3+......+xnn.....1 Now when observations are multiplied by 2, then new observations are 2x1, 2x2, 2x3......., 2xn New mean…
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