following is the marks of 8 students. find out arithmetic mean by shortcut method and step deviation method 30,45,60,45,15,65,85,20
Answers
Answered by
5
Answer:
(30+45+60+40+15+65+85+20)/8
(30+45+60+40+15+65+85+20)/8=360/8
(30+45+60+40+15+65+85+20)/8=360/8=45
Answered by
1
Answer:
(30+45+60+40+15+65+85+20)/8
(30+45+60+40+15+65+85+20)/8=360/8 (30+45+60+40+15+65+85+20)/8=360/8=45
Similar questions