Find the mean of t + 2, 2t – 4, 3t + 2 and 2t.
-
A.
t + 1 -
B.
2t -
C.
2t + 1 -
D.
t
Correct Answer: Option B
Explanation
(sum x) = (t + 2) + (2t + 4) + (3t + 2) + 2t = 8t
N = 4_
∴ Mean, x = (frac{sum x}{N} = frac{8t}{4} = 2t)
= 2t
There is an explanation video available below.