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Ross
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Is a non-weighted 3.8 GPA good for an eighth grader?
it depends on where you live and other students grades too...But for me..yeah thats a good grade :) be proud lol
Justins test grades were 78 84 74 and 80 what was his weighted average if the test grades are wieghted 4 5 2 and 3 respectively?
74=((78*4)+(84*4)+(74*2)+(80*3))/(4+5+2+3)3.5=(4+5+2+3)/4
Is there a symbol for average?
Sometimes it is denoted by putting a line above the variable that is being averaged. The "Expectation value" of a random variable - is like a weighted average. I'll explain by way of example: lets say X represents your grades in high school and how much weight should be given to each grade (not all courses are equal). X is a random variable. E[X] or <X> or the Greek letter mu (µ) - are a few of the common symbols for the Expected Value of X - or your weighted average of high school grades.
What type of research could allow you to determine whether students' grades accurately predict later income?
Correlation
Can you pass the 7th grade with 2 D's?
Yes, as long as you have okay grades as well as the 2 D's. Hope this helps!
