Find the Mean (Arithmetic) the percentage of scores between 90 and 120 is

Math
the percentage of scores between 90 and 120 is
The mean of a set of numbers is the sum divided by the number of terms.
90+1202
Cancel the common factor of 90+120 and 2.
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Factor 2 out of 90.
2⋅45+1202
Factor 2 out of 120.
2⋅45+2⋅602
Factor 2 out of 2⋅45+2⋅60.
2⋅(45+60)2
Cancel the common factors.
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Factor 2 out of 2.
2⋅(45+60)2(1)
Cancel the common factor.
2⋅(45+60)2⋅1
Rewrite the expression.
45+601
Divide 45+60 by 1.
45+60
45+60
45+60
Add 45 and 60.
105
Find the Mean (Arithmetic) the percentage of scores between 90 and 120 is

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