The mean score is - JAMB Mathematics 2001 Question
A
7.0
B
8.7
C
9.5
D
11.0
correct option: b
Mean ((4*3) + (7*5) + (8*2) + (11*7) + (13*2) + (8*1))/20
(12 + 35 + 16 + 77 + 26 + 8)/20
174/20 = 8.7
(12 + 35 + 16 + 77 + 26 + 8)/20
174/20 = 8.7
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