Question

2) Write the class marks of the following data.
Weights in kg
Class-mark
20-25
25-30
30-35
35-40​

Answer 1

Answer:

22.5

Step-by-step explanation:

lower limit+upper limit/2

20+25/2

Answer 2

20-25's class mark=(20+25)/2=45/2=22.5

25-30's class mark=(25+30)/2=55/2=27.5

30-35's class mark=(30+35)/2=65/2=32.5

35-40's class mark =(35+40)/2=75/2=37.5