3. The class mark of the class 20-30 is
2) 20 b)30
c)25
d)10
Answers
Answered by
2
Answer:
c
class mark = x1 +x2/2
20+30/2=50/2
=25
Answered by
0
Step-by-step explanation:
Class mark
= upper limit + lower limit ÷2
= 30+20/2
=50/2
=25
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