Question

how to do Direct method in statistics​

Answer 1

hey mate here is ur answer
u can do it using the formula summationfx by summation f

Answer 2

Answer:

Step-by-step explanation:

For finding mean by direct method:

Make these columns:

Class|Frequency(fi)|midvalue(xi)|(fi*xi)

Where class is the give class for ex:10-20,20-30 and so on

Frequency is also given in the question

Midvalue(xi)=upper limit +lower limit /2 for ex:10+20/2=15

Fi*xi of all classes

Mean=sum of fi*xi/sum of fi

Hope this will help

Mark as brainliest answer please