Question

Bijoy's marks in five subjects were 85 ,83,81,79,77
find his marks in the
Subject if his mean or average marks
of six subjects
Sixth
was 82.5​

Answer 1

Answer:

mean = number of observation/ total number of observation

mean =85+83+81+79+77+82.5/6

mean =787.5/6

131.25 answer