Mathematics

What is the mean of the data t, 2t-1, t-2, 2t-1, 4t and 2t+2?

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: Option D
Explanation

(Mean = frac{t+2t-1+t-2+2t-14t+2t+2}{6}\
Mean = frac{12t-2}{6}\
=frac{2(6t-1)}{6}\
=frac{6t-1}{3}\
=frac{6t}{3}- frac{1}{3}\
=2t-frac{1}{3})