Asked by Mary Ann
A class obtained the following scores on a test.
Test Score TestScore Frequency
90 1
80 6
70 10
60 3
50 2
40 3
What I did was
90+6(80)+7(10)+3(60)+2(50)+3(40)=1040 than divided by 25 which should give me the means it give me a fraction, I got the median right 70,mode right 70, and the range right 50. But I can not get the means right.
Test Score TestScore Frequency
90 1
80 6
70 10
60 3
50 2
40 3
What I did was
90+6(80)+7(10)+3(60)+2(50)+3(40)=1040 than divided by 25 which should give me the means it give me a fraction, I got the median right 70,mode right 70, and the range right 50. But I can not get the means right.
Answers
Answered by
MathMate
90+6(80)+<b>10(70)</b>+3(60)+2(50)+3(40)=1670
I'll leave the rest to you.
I'll leave the rest to you.
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