Question

the upper limit of a class interval is 42.5 and the class mark is 40 then the lower limit is​

Answer 1

Step-by-step explanation:

given

$|?|$

the upper limit of the class of investment is 42.5 given and the class marks is 40 then find the answer 4580 is equals to

Answer 2

The lower limit is equal to 37.5.

Step-by-step explanation:

Given,

The upper limit of a class interval = 42.5 and

The class mark = 40

To find, the lower limit = ?

Let lower limit = x

We know that,

The class mark $=\dfrac{Upper limit+lower Limit}{2}$

⇒ $\dfrac{42.5+x}{2} =40$

⇒ $42.5+x=40\times 2=80$

⇒ $x=80-42.5=37.5$

∴ x = 37.5

The lower limit = 37.5

Hence, the lower limit is equal to 37.5.