Calculating Mean using Assumed Mean.

In this video, we covered in detail, how to calculate mean using assumed mean or working mean.
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Mean, median and mode of grouped data:
Part 1

Others are:

Left and Right Hands

[isaacmtonga]

For problem 2 isn't the summation of f(x-A) equal to -140

[srijanapaudel]

From this data
Find arithmetic mean using shortcut method and step deviation??

[FX]

Thank you. but the summation of x-a is wrong dear sir

[Prof.Newton]

Problem 2 there's summation error in the last column. It should be -140😮

[KamaraSheriff-fu]

Problem 2...F(X-A)=140 and not 176
Thank you sir😊

[Thugzic]

Mr Abdulrahman i hope you reach 100k soon. We miss you here in Zamani.

[Prof.Newton]

Wow so any number can be chosen to give the same mean

[calebchuks]

Really good, keep it up, I like the exceptions

[gambaanenimat]

How do you find the assumed mean when it's not given in the question?

[ikueneevincent]

Please check your Ef(x-A) in problem 2
I think there's a mistake there
Thanks

[bisharabillow]

What if we are not given assumed mean and instead you have to draw it from the distribution table?