The purpose of this assignment was to measure the standard deviation of student’s test scores. The question to answer here was simply: how do you determine it? To answer this question, I found that I must find the mean, find the differences from the mean (and each number), square the result, find the mean of the squared differences, then find the squared root.
To find the standard deviation for the student’s test scores, I had to follow the steps outlined above. After proceeding through each step (see attached Plectica map), I found the answer to be 6.63.
So, why is the standard deviation of 6.63 important? This is because we can now show which test scores are within one standard deviation (6.63) of the mean. So, using the standard deviation, we have a “standard” way of knowing what is normal, and what is a high or low score.
See Plectica Map here:
https://www.plectica.com/maps/CLB4GWN81
Brandon – phenomenal job!
Brandon,
I really liked how you structured your map! I feel that this was a challenging assignment especially having to learn new programs and try to merge them all together for it to make sense. Overall, great job on our first assignment!
Eric
Thanks Eric. This definitely was a challenging week. I’ll take your advice and watch some more youtube videos!
Brandon
Brandon, after struggling hard with all of this, I found looking at your mapping really helped. The structure flowed well. The Talbeau images showed the relationships in different ways, which was also helpful.
Brandon great job, i use you map as a guide for mine and it really help me.