Question 28

waecmaths question: 

Number of goals

1

2

3

4

5

6

7

Number of teams

3

1

6

6

4

2

3

The table shows the distribution of goal scored by 25 teams in a football competition.

Calculate the probability that a team selected at random scored at most 3 goals

Option A: 

$\tfrac{3}{25}$

Option B: 

$\tfrac{1}{5}$ 

Option C: 

$\tfrac{6}{25}$

Option D: 

$\tfrac{2}{5}$

waecmaths solution: 

Total (Teams with almost of almost 3 goals) = 3+1+6  =10

Total number of teams = 25

$\Pr (at\text{most three goals)}=\frac{10}{25}=\frac{2}{5}$

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