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Dr. Marvin Mindless is a sociology professor. The scores below are Grade Point Averages...
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We have the Grade Point Average (GPA) scores on a four-point scale of students in Dr. Mindless’ sociology class as:
Student GPA (`x_i` )
Here, N = 13
`sumx_i = (2.5+2.0+3.7+4.0+3.0+2.2+2.5+2.1+3.0+2.5+2.6+1.6+2.4) = 34.1`
Mean `barX = 1/Nsumx_i`
`= 2.6` (after rounding off to the nearest tenthplace of a fraction).
Therefore, the mean of the GPA scores obtained by the students in Dr. Mindless' sociology class is 2.6.
Posted by llltkl on May 27, 2013 at 1:08 AM (Answer #1)
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