Question

Find the mean of the following data :



Variable(x) 5 15 25 35 45

Frequency(f) 6 4 9 6 5​

Answer 1

Answer:

variable(x)=5+15+25+35+45/5

=125/5

=25.

frequency(f)=6+4+9+6+5/5

=30/5

=6.