Question

if a=50,sigma fiui =-36, sigma fi=35 ,h=10 then find mean.​​

Answer 1

Answer:

Step-by-step explanation:Thank you for asking this question, here is your answer:

ui = x base i A/ h

ui = x base i - 25/ 10 (this is given)

A = 25

h = 10

x = A + h x sigma (fiui) / sigma(fi)

= 25 + 10 x 20/100

= 25 + 2

= 27

27 is the final answer for this question.

If there is any confusion please leave a comment below.

Answer 2

$\sf a =50$

$\sf h=10$

$\sf Σf_iu_i=37$

$\sf Σf_i=50$

Formula:-

$\boxed{\pink{\sf Mean=a+\frac{Σf_iu_i}{Σf_i}×h}}$

$\dashrightarrow\sf 50+\frac{37}{50}×10\\$

$\dashrightarrow\sf \frac{250+37}{5}\\$

$\dashrightarrow\sf \frac{287}{5}\\$

$\dashrightarrow\sf 57.5$