2008
Mathematics
67ca00ce0c643c71d77dee1f
What is the mean of the data t, 2t-1, t-2, 2t-1, 4t and 2t+2?
A.
2t
B.
2t-1
C.
2/3t+1
D.
2t-1/3
Correct Answer: 2t-1/3
Explanation
Mean=(t+2t-1+t-2+2t-14t+2t+2)/6 Mean=(12t-2)/6=(2(6t-1))/6=(6t-1)/3=6t/3-1/3=2t-1/3
Mean=(t+2t-1+t-2+2t-14t+2t+2)/6 Mean=(12t-2)/6=(2(6t-1))/6=(6t-1)/3=6t/3-1/3=2t-1/3THIS WEEK's
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