Question

Find the mean deviation about the mean for the data in
Xi 5 10 15 20 25
Fi 7 4 6 3 5

Answer 1

mean equals to

sum of all observation upon total number of all observation

so,

=5+10+15+20+25+7+4+6+3+5 / 10

= 100/10

=10

so the mean =10