Question

how can we get class limits when mid-value of class and class lenght are given.....??
please answer​

Answer 1

Answer:

Step-by-step explanation:

To calculate the class interval, first step is to rewrite the table by including the values of mid-interval in place of the values given in range. Then the sum of all the mid- interval values is calculated.

⇒  Let upper limit and lower limit be x and y

⇒   2 x+y

=42                   [ Given ]

∴  x+y=84                     ------ ( 1 )

Now, according to the question,

⇒  x−y=10                  ------ ( 2 )

Adding equation ( 1 ) and ( 2 ) we get,

2x=94

∴  x=47

And 47−y=10

∴  y=37

∴  Required class interval =37−47

pls pls make me brainliest