Question

3. The class mark of the class 20-30 is
2) 20 b)30
c)25
d)10​

Answer 1

Answer:

c

class mark = x1 +x2/2

20+30/2=50/2

=25

Answer 2

Step-by-step explanation:

Class mark

= upper limit + lower limit ÷2

= 30+20/2

=50/2

=25