Question

find the mean of the following distribution number 5 ,10,15,20 25 ,30,35
and frequency 1,2,5,6,3,2,1 ​

Answer 1

Answer:

a.?

b. mean 2 frequency 2

Answer 2

Answer:

20

Step-by-step explanation:

mean = sum of observations / number of observations

mean= 5 +10+15+20+25+30+35/7

mean = 140/7

mean = 20