Free Sample Paper! Boost your grades with additional practice papers.
Free Sample Paper! Boost your grades with additional practice papers.
Question
Difficulty Level:
Easy
Oswal Guidebook
MCQ
Let x¯ be the mean of x1,x2,…,xn and y¯ the mean of y1,y2,…,yn. If z¯ is the mean of x1,x2,…,xn y1,y2,…,yn, then z¯ is equal to
Select all that apply :
2(x¯+y¯)
x¯+y¯
n(x¯+y¯)
2n(x¯+y¯)
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