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Four students get 90s on a test, three get 70s, 2 get 60s and one gets an 80. what is the mean test score in this group?
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Four students get 90s on a test, three get 70s, 2 get 60s and one gets an 80. what is the mean test score in this group?

User Wpdaniel
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1 Answer

3 votes
The mean score will be given by:
mean=
mean=[90*4+70*3+2*60+80]/10
=[360+210+120+80]/10
=770/10
=77
the mean score is 77
User Nisaa
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7.3k points
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