Question

write the formula of Arithmetic mean. By step deviation method and explain each terms in it.
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Answer 1

Answer:

u=x-a/c

mean=a+fu/f×c

where,x is class mark,a is assuming mean,c is class height and f is frequency........

Answer 2

Step-by-step explanation:

We know the genral formula of ap through this we can found the sum of the ap