Mark of 12 students in aunit test are given as 4,21,13,17,5,9,10,20,19,12,20,14. Assume a mean and calculate the arithmetic mean of the data . Assume another number as mean and calculate the arthmetic mean again Do you get the same result ? comment. the lesson name is Frequency Distribution Tables and Graphs 8 th maths in give the answer Formula
Answers
Answered by
11
Marks in ascending order
4,5,9,10,12,13,14,17,19,20,20,21
assume mean - 13.5
AM = (4+5+9+10+12+13+14+17+19+20+20+21)/12
=164/12
=13.67
4,5,9,10,12,13,14,17,19,20,20,21
assume mean - 13.5
AM = (4+5+9+10+12+13+14+17+19+20+20+21)/12
=164/12
=13.67
Similar questions