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

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})