Mean

For a student's food, the mean of 50 items is 38.6. When checking the work, he found that he had taken one item as 50 to read as 40 in these circumstances correctly. What should the correct arithmetic mean?

Correct answer:

m =  38.4

Step-by-step explanation:

n=50 m1=38.6 m=(n m150+40)/n=(50 38.650+40)/50=38.4



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Showing 1 comment:
Math student
In a normal distribution with a mean of 30 what percentage of the scores would be above the mean?





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