Question

roll the number cube to find the observed frequency. roll the number cube 20 times to represent 20 purchases. what is the experimental probability of receiving a 50% coupon? write the probability as a decimal.

number	discount	observed frequency
2	20%	3
3	25%	1
4	30%	1
5	50%	1
6	75%	1
total		9

roll one time.

Explanation:

Step1: Recall experimental - probability formula

The formula for experimental probability is $P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$.

Step2: Identify favorable and total outcomes

The number of times a 50% coupon (corresponding to number 5 on the cube) was observed is 1 (favorable outcome), and the total number of rolls (purchases) is 20.

Step3: Calculate the experimental probability

$P=\frac{1}{20}=0.05$

Answer:

$0.05$