Question

The marks (out of 100) obtained by a group of students in a Math test are 86, 75, 90, 85, 38, 49, 56, 95, 80 and 75. Find the Mean marks obtained by the group.

Answer 1

Answer:

Step-by-step explanation:

Step 1: Add all the marks to calculate the total marks.

86 + 75 + 90 + 85 + 38 + 49 + 56 + 95 + 80 + 75 = 725

Step 2: Calculate the Mean marks.

Mean = Total marks / Number of students

Mean = 725 / 10

Mean = 72.5

Answer 2

Answer:

86+75+90+85+38+49+56+95+80+75

Mean=sum of observations/ total number of observations

Mean =725/10

=72.5

Step-by-step explanation:

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