Find the mean of the distribution xi 4 6 9 10 15 fi. 5 10 10 7 8
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6
Answer:9
Step-by-step explanation:
xi fi xifi
4 5 20
6 10 60
9 10 90
10 7 70
15 8 120 ∑xifi=360
∑fi=40
therefore mean = ∑ xifi/∑fi= 360\40 = 9
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