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January 5th, 2017, 07:03 PM   #1
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Most Likely Decimal Digit Of GPA Quality Points

Take these GPAs for each letter grade:

A = 4.0
A- = 3.7
B+ = 3.3
B = 3.0
B- = 2.7
C+ = 2.3
C = 2.0
C- = 1.7
D+ = 1.3
D = 1.0
F = 0.0

To make it simple, assume that in a randomly selected class my GPA could end in .0, .3, or .7 with a probability of 1/3 each. The quality points for a class is GPA*number of credits. If you only work with three credit classes, as the amount of classes increases will the sum of the quality points be more likely to end in certain decimal digits values or will there be no pattern? I passed 34 three credit classes and 2 four credit classes. Is there any way of calculating the probability of my quality points decimal digit being every number from 0 to 9?
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