In a test, the 10 students in group 1 get a mean score of 43%.
the 15 students in group 2 get...
Mathematics, 23.08.2019 19:30 vanna7353
In a test, the 10 students in group 1 get a mean score of 43%.
the 15 students in group 2 get a mean score of 57%.
hank says, " the mean score for all 25 students is 50%."
what mistake has hank made?
what is the correct mean score for all 25 students?
Answers: 1
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