Question 49

Jambmaths question: 

Numbers

1

2

3

4

5

6

Frequency

18

22

20

16

10

14

The table above represent the outcome of throwing a die 100 times. What is the probability of obtaining at least a 4

Option A: 

$\tfrac{1}{2}$

Option B: 

$\tfrac{2}{5}$

Option C: 

$\tfrac{3}{4}$

Option D: 

$\tfrac{1}{5}$

Jamb Maths Solution: 

$\begin{align}  & \text{Total possible outcomes }=100 \\ & \text{Expected outcomes of least 4 }=16+10+14=40 \\ & \text{probabililty }=\frac{40}{100}=\frac{2}{5} \\\end{align}$

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