The table shows the distribution of goals scored by 25 teams in a football competition. Calculate the probability that a team selected at randon scored either 4 or 7 goals.
-
A.
(frac{9}{25}) -
B.
(frac{1}{5}) -
C.
(frac{6}{25}) -
D.
(frac{2}{5})
Correct Answer: Option A
Explanation
Prob. (team scored 4 goals) = Prob. (team scored 7 goals) = (frac{3}{25})
Hence, probability that a team selected at random scored either 4 or 7 goals;
= (frac{6}{25} + frac{3}{25})
= (frac{9}{25})