Question

-2. Find the class size and class-mark of the class interval 100-120​

Answer 1

Answer:

class mark = upper limit+lower limit 2 so,120+100/2=>220/2=110.so 110 is the class mark.in other words class mark is also known as mid-value.

Step-by-step explanation:

Answer 2

Answer:

110

Step-by-step explanation:

class mark = upper limit + lower limit / 2

100 + 120 / 2

220 / 2 = 110