Concept explainers
To calculate: To find if the sampling method is valid and the find how many of
Answer to Problem 3CYP
Explanation of Solution
Given information: After finishing the meal, every fifth person that left the restaurant was surveyed whether they ordered dessert after their meals.
Formula Used:
Probability is defined as the likelihood of an event.
Probability is calculated as
Calculation:
Given that every fifth person that left the restaurant was surveyed whether they ordered dessert after their meals.
Yes, the above sampling method is valid, as this is a random experiment
Also, given that out of
Now, probability that person ordered dessert after their meals is calculated as follows:
Also, total people surveyed
Thus, number of people who ordered dessert after their meals is calculated as follows:
Conclusion:
Hence,
Chapter 13 Solutions
Pre-Algebra, Student Edition
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