Today in class we learned how to find "z-scores", and how normal distribution can be used in every problem for any data.
Z-scores represent how far or below the average.
To calculate a z-score, subtract the mean from the given value, x, then divide by the standard deviation.
To find a solution to a z-score problem, follow these steps:
1) Find the z-scores
2) Set the window on your calculator
3)Find the Shadenorm
4)Find the percentage
The window on your calculator for z-scores should be:
xmin:-5
xmax:5
xscl:1
ymin:-2
ymax:.5
yscl:.1
xres:1
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