Question

find the sum of upper limit and lower limit of the class interva: 100-120​

Answer 1

Step-by-step explanation:

Highest frequency in this data called modal class

So, here

9 is the highest frequency

So, modal class⇒40−50

then,

Sum of lower limit and upper limit of modal class

⇒40+50

⇒90

Hence, this is the answer.

Answer 2

Answer:

class mark =( upper limit + lower limit) / 2

= 220/2

= 110 ans.