Find the class mark of class interval 20-50.
a) 20 b) 50 c) 25 d) 35
Answers
Answered by
0
Answer:
class mark = upper limit + lower limit ÷ 2
therefore, class mark = 50 + 20 ÷ 2
= 70 ÷ 2 = 35
d) 35 is the class mark
Answered by
0
Answer:
class mark = sum of limits/2
= 20+50/2
= 70/2
= 35
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