If 5 scores average 80, their sum is 400.
If 6 scores average 83, their sum will be 498.
The sixth score must be (498 - 400) = 98% .
149
149
Raise your score by 12%.
A Z score of 300 is an extremely large number as the z scores very rarely fall above 4 or below -4. About 0 percent of the scores fall above a z score of 300.
4
You could add all 50 test scores or use frequency. Add 35 times 80 percent to 15 times 70 percent and then divide by the 50 students.
average = the sum of the test scores/the number of the tests93.3 = (97 + 91 + the third test score)/3 (multiply by 3 to both sides)279.9 = 97 + 91 + the third test score (subtract 97 and 91 to both sides)91.9 = the third test score
composite score
The average credit score is charted showing the relationship between age and the average credit scores. Younger people have lower credit scores than older people.
(.97+.75+.89+.70)/4 .8275 82.75%
SAT scores are used by universities to gauge the viability of potential applicants. For 2013, the average SAT score was a 1498.
I was given this formula in college: IND Posttest score - IND pretest score ______________________________ = Improvement Score Highest score for all - IND pretest score