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For a gives frequency distribution
A=49.5
C =20
Efi = 40 Efiui = -5 and C =20 then mean x=______
​

By Natalia

For a gives frequency distribution
A=49.5
C =20
Efi = 40 Efiui = -5 and C =20 then mean x=______
​

About the author
Natalia

y = log tan x/2+ sin-1
(cos x), then dy / dx is
(a) cosec x-1
(b) cosec x
(c) cosec x + 1
(d) x​

Sudherson deposited Rs. 32000 in a bank, where the interest is creditely quarterly. If the rate of interest be 5% per annum, What

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