Question

the class mark of 31-40 is​

Answer 1

Answer:

35.5

Step-by-step explanation:

(31+40)/2 = 35.5

Class Mark (Midpoint) The number in the middle of the class. It is found by adding the upper and lower limits and dividing by two. It can also be found by adding the upper and lower boundaries and dividing by two. Cumulative Frequency.

mark me brainliest

follow ❤️