Question

Calculate mean and median for the following data Variable 118-126 127-135 136-144 145-153 153-162 163-171 172-180 Frequency 4 9 12 15 13 10 5

Answer 1

Answer:

For calculating mean=sum of observations/No. of observations

Step-by-step explanation:

Mean= 2,085/14

=148

To find median = arrange in ascending order

118,126,127,135,136144,145,153,153,162,163,171,172,180

median= find the middle term =145

Frequency= to find frequency arrange in ascending order

4,5,9,10,12,13,15

frequency =repetition

there is no repetition of no. in the data.

thus,there is no frequency.