The mean of the scores of three
students in a class is 9. If the modal
score is 11, find the lowest score.
5 answers
that would be 5
pls steve! Help me, i need the solution on how to solve this type of question.
please Steve help me. I need the steps on how to get the answer
This one is really quite simple, if you understand what the mean and mode are.
The mode is the most frequent score. Since there are only three scores, and the mode is 11, it must occur more than any other score. That is, 11 occurs twice.
Since the mean is 9, the sum of the three scores is 3*9 = 27.
Since two of the scores are 11, the third score must be 5, since
11+11+5 = 27
The mode is the most frequent score. Since there are only three scores, and the mode is 11, it must occur more than any other score. That is, 11 occurs twice.
Since the mean is 9, the sum of the three scores is 3*9 = 27.
Since two of the scores are 11, the third score must be 5, since
11+11+5 = 27
thank you sir!