Question

If the mean of the following distribution is 120.58, find the value of (S)​

Answer 1

Answer:

685

Step-by-step explanation:

mean=Σfx/Σf

(549+8s)/50=120.58

(549+8s)=120.58x50

(549+8s)=6029

8s=6029-549=5480

s=5480/8=685

Hope this helps :)