19.05 Experimental probability
Interactive practice questions
To prepare for the week ahead, a restaurant keeps a record of the number of each main meal ordered throughout the previous week.
| Meal | Frequency |
|---|---|
| Chicken | $54$54 |
| Beef | $32$32 |
| Lamb | $26$26 |
| Vegetarian | $45$45 |
How many meals were ordered altogether?
Determine the experimental probability, as a percentage, that a customer will order a beef meal.
Round your answer to the nearest whole percent.
A retail store served $773$773 customers in October, and there were $44$44 complaints during that month.
Determine, as a percentage, the experimental probability that a customer submits a complaint.
At the main traffic light in town going north to south the green light is on for $24$24 seconds, then the yellow light lasts for $3$3 seconds, and then the red light is on for $13$13 seconds. This cycle then repeats.
If a car approaches the traffic light, what is the probability that the light will be:
Five schools compete in a basketball competition. The results from the last season are given in the table below.