Question
Which of the following formulae is used to determine the experimental probability of an event occurring 8 times out of 20 trials?
Number of favorable outcomesTotal number of possible outcomes
The number of times the event occursThe total number of trials
Number of favorable outcomesNumber of unfavorable outcomes
Number of unfavorable outcomesNumber of favorable outcomes
Number of favorable outcomesTotal number of possible outcomes
The number of times the event occursThe total number of trials
Number of favorable outcomesNumber of unfavorable outcomes
Number of unfavorable outcomesNumber of favorable outcomes
Answers
GPT-4o mini
To determine the experimental probability of an event occurring, you use the formula:
\[
\text{Experimental Probability} = \frac{\text{Number of times the event occurs}}{\text{Total number of trials}}
\]
Given your example where the event occurs 8 times out of 20 trials, the experimental probability would be:
\[
\text{Experimental Probability} = \frac{8}{20}
\]
So, the correct formula from your options is:
**The number of times the event occurs / The total number of trials**.
\[
\text{Experimental Probability} = \frac{\text{Number of times the event occurs}}{\text{Total number of trials}}
\]
Given your example where the event occurs 8 times out of 20 trials, the experimental probability would be:
\[
\text{Experimental Probability} = \frac{8}{20}
\]
So, the correct formula from your options is:
**The number of times the event occurs / The total number of trials**.