Question

What are the lower, upper limits and lower, upper boundaries of the 3rd class in the distribution

10 – 20, 21 – 30, ……​

Answer 1

Step-by-step explanation:

the third class is 31-40

lower limit is thirty one.

upper limit is forty.

lower boundary=31+30/2=30.5

upper boundary =40+41/2=40.5