Question

find the class mark for the class 199.5 - 209.5​

Answer 1

Answer:

204.5

Step-by-step explanation:

To find the class Mark of any class one should remember the formula first.

$\boxed{ \: Class \: mark (x_i)= \frac{upper \: class \: limit + lower \: class \: limit }{2} }$

here the class is 199.5-209.5

upper class limit=209.5

Lower class limit=199.5

According to the formula

$x_i = \frac{209.5 + 199.5}{2} \\ \\ = \frac{409.0}{2} \\ \\ x_i = 204.5$

Hence,class Mark of class is 199.5-209.5 is 204.5

Hope it helps you.

Answer 2

Answer:

Class mark for the class 199.5 - 209.5 is 204.5