Asked by paul

the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points will the final exam be worth?
Answered by Ms. Sue
0.3 * 245 = ?
Answered by Reiny
I read that differently
"prior to the final exam, 245 points are possible" appears to imply that 245 points is 70% of the total

so total = 245/.7 = 350

so the final is worth 350-245 or 105 points

(check: 105/350 = .3 = 30%)
Answered by Anonymous
On a recent math exam, Alex received a score of 92%. His z-score is positive 2. If the mean for the exam is 84, what is the standard deviation?
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