If the total score for students in the quest exam is 210 and the mean for their scores is 7, the number of students is
a. 30
b. 21
c. 70
d. 0.7
Ans:
Total score=210
mean score=7
mean score=total score/number of students
Number of students=210/7=30
Option a is correct(30)
If the total score for students in the quest exam is 210 and the mean for...
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