Can you solve 5th question
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I think this is write answer
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Answer:
42.53
Step-by-step explanation:
class f1 x1 d1 u1 f1u1
20-30 25 25 -20 -2 -50
30-40 40 35 -10 -1 -40
40-50 42 45 0 0 0
50-60 33 55 10 1 33
60-70 10 65 20 2 20
total= 150 -37
x= a+∑f1u1\∑f1 x (h)
= 45+-37/150 x 10
= 42.53
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