Question

in the interval of 40-50 , 50 is called ​

Answer 1

Answer:

40-50, 50-60....so on

Answer 2

Answer:

Class mark of the class interval 40-50 is 45

Step-by-step explanation:

Given class interval (40-50)

Lower limit = 40

Upper limit = 50

Therefore,

Class mark of the class interval 40-50 is 45