Question

The percentage marks obtained from 12 students of a class in mathematics are 36,64,47,50,39,81,93,72,35,53,41 find mean percentage of marks.​

Answer 1

Given observations are 36,64,47,50,39,81,93,72,35,53,41

number is observations=11

mean = sum of observations / number of observations

=36+64+47+50+39+81+93+72+35+53+41/11

= 611/11

=55. 5454..

=55.55(approximately)

Therefore the mean percentage of marks is 55.55.

(actually in the question,there are only 11 observations but you mentioned 12 students.so I have changed the number of observations and solved it for you)

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Answer 2

Answer:

55.5%(approx)

Step-by-step explanation:

(Given 11 students marks only. So i take 11 students mean percentage marks)

mean = sum of observations / number of observations

= 36+64+47+50+39+81+93+72+35+53+41 / 11

=611/11

=55.5%(approx)

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