Question

average of 45, 50, 42, 44,52, 43, 42

Answer 1

average=sum of observation/no.of observation

45+50+42+44+52+43+42/7
=100+45+44+52+42+42
=100+45+84+44+52
=100+45+124+52
=100+169+52
=269+52/7
=321/7
=45.85