Find the mean of t + 2, 2t – 4, 3t + 2 and 2t.
- t + 1
-
2t
- 2t + 1
- t
The correct answer is: B
Explanation
\(\sum x\) = (t + 2) + (2t + 4) + (3t + 2) + 2t = 8tN = 4_
∴ Mean, x = \(\frac{\sum x}{N} = \frac{8t}{4} = 2t\)
= 2t
There is an explanation video available .