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If Σfx = 60+45a and Σf = 12+9a , find the mean.
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5 votes
If Σfx = 60+45a and Σf = 12+9a , find the mean.

User William Z
by
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1 Answer

3 votes

Explanation:

Σfx = 60+45a

Σf = 12+9a

Now

Mean =Σfx/Σf

= 60+45a/12+9a

=105/21 (a has been canceled)

=5

Therefore mean =5

User Otupman
by
6.2k points
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