Question

Mike rolls a die 30 times and gets the frequency shown in the table below. What is the relative frequency (experimental probability of rolling a 3 or a 4?

Answer 1

Given:

Number of times the die rolled = 30

Number of times got 3 = 7

Number of times got 4 = 6

Required: Experimental probability of rolling a 3 or a 4.

Step-by-step explanation:

Experimental probability is defined as

`P(\text{event\rparen=}\frac{\text{ Number of times event occur}}{\text{ Total number of events}}`

Number of times got a 3 or a 4 = 7+6 = 13

So,

`\begin{gathered} P(\text{rolling a 3 or a 4\rparen=}\frac{\text{ Number of times got a 3 or a 4}}{\text{ Total number of trials}} \\ =(13)/(30) \end{gathered}`

Option C is correct.

Final Answer: Experimental probability of rolling a 3 or a 4 is 13/30.