The table above shows the distribution of recharge cards of four major GSM operators. What is the probability that a recharge card selected at random will be GTN or Qtel?
-
A.
3/20 -
B.
1/4 -
C.
2/5 -
D.
3/4
Correct Answer: Option C
Explanation
P(GTN) = 5/20
P(Qtel) = 3/20
∴P(GTN or Qtel) = (5/20) + (3/20)
= 8/20
= 2/5