The mean of 2 – t, 4 + t, 3 – 2t, 2 + t…

The mean of 2 – t, 4 + t, 3 – 2t, 2 + t and t – 1 is

Correct Answer: Option C

Explanation

Mean x = (frac{sum x}{n})
= [(2 – t) + (4 + t) + (3 – 2t) + (2 + t) + (t – 1)] (div) 5
= [11 – 1 + 3t – 3t] (div) 5
= 10 (div) 5
= 2

There is an explanation video available below.