The mean of 2 - t, 4 + t, 3 - 2t, 2 + t and t - 1 is
A
t
B
-t
C
2
D
-2
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
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
Source: Myschool Past Questions Archive (Record #27031)