Question

A restaurants tracks the number of tables served over the course of 4 days and

whether those tables included children and if a dessert was ordered at that table.
The results are shown.
What is the probability that a randomly selected order has no children or did order
dessert?
Enter your answer as a decimal rounded to the nearest hundredth.

Answer 1

To calculate the probability that a randomly selected order has no children or did order dessert, data on the number of such tables served is required. The calculation involves adding the number of tables with no children and those where dessert was ordered, adjusting for any overlap, dividing by the total tables served, and rounding to the nearest hundredth.

Step-by-step explanation:

To determine the probability that a randomly selected order in a restaurant has no children or did order dessert, we would first need to have data on the number of tables served that fit these criteria over the 4 days. Since the actual data isn't provided in the question, we'll discuss how you would calculate the probability if those numbers were given.

Here is the step-by-step explanation of the concept assuming we have data:

1. Count the number of tables that had no children.
2. Count the number of tables where dessert was ordered.
3. Add these two numbers together. If a table fits both criteria (no children and ordered dessert), make sure not to count it twice.
4. Count the total number of tables served over the 4 days.
5. Divide the sum of tables with no children or desserts ordered by the total number of tables to find the probability.
6. Round this decimal to the nearest hundredth to get your final answer.

Note that rounding answers to relative frequency and probability problems is typically done to four decimal places, as indicated in one of the instructions given. However, in this case, the prompt specifies to round to the nearest hundredth.