Uni catch up update:
- 2 weeks study and 1 assignment to write for one module.
And then 3 weeks study for the other module.

Already powered through 2 weeks in about 5 hours today and yesterday.
Very lucky that I'm able to get through academic stuff so quickly.
Hoping to start the new year not behind in everything...

#OpenUniversity #StudentsInWales

Maths question.

Uni explaining how to figure out standard deviation.
Step 2: Square each difference. We want to know the overall deviation regardless of direction (− or +), but if we add the difference scores together, some will cancel each other out. Squaring the difference scores (multiplying each score by itself, e.g. −4 x −4) avoids this.

My question: Why can you not just ignore the +/- and thus erase both this step and the square root step later?

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