Find the mean of t 2 2t - 4 3t 2 and 2t - JAMB Mathematics 2013 Question
Find the mean of t + 2, 2t - 4, 3t + 2 and 2t.
A
t + 1
B
2t
C
2t + 1
D
t
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Correct Option: B
(\sum x) = (t + 2) + (2t + 4) + (3t + 2) + 2t = 8t
N = 4_
∴ Mean, x = (\frac{\sum x}{N} = \frac{8t}{4} = 2t)
= 2t
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