Thank you for your help! Can you please help me figure out step by step what you did in the highlighted blue part.

Thank you for your help! Can you please help me figure out step by step what you did in the highlighted blue part.

I am only able for the test to use a standard calculator so I need to write it out. Thank you!

It’s simple the x value minus the mean and then you square the result.For example, the for example For group A the first value will be(8-9.25)2=1.5625Here 8 is the first value we are given and...