### Probability Problems on Smoking and Customer Satisfaction#### Smoking Habits of Adult American SmokersSuppose 90% of adult American smokers started smoking before age 21. In a random sample of 15 smokers aged 21 or older:1. **Probability that exactly 10 started smoking before age 21?**2. **Probability that fewer than 5 started smoking before age 21?**3. **Probability that between 4 and 7 of them (inclusive) started smoking before age 21?**4. **Probability that at least 8 started smoking before age 21?**#### Customer Satisfaction at Grocery Store XYZAccording to the store, 90% of customers are satisfied with their shopping experience. A random sample of 25 customers was surveyed:1. **Probability that exactly 10 customers are satisfied?**2. **Probability that at least one customer was satisfied?**3. **Probability that between 10 and 15 customers (inclusive) were satisfied?**These questions explore the application of the binomial probability distribution, given the percentages of smokers and satisfied customers.

Suppose 90% of adult American smokers started smoking before age 21, if a random sample of of 15 smokers of age 21 or older is selected, 1) What is the probability that exactly 10 started smoking before age 21? 2) What is the probability that fewer than 5 started smoking before age 21? 3) Find the probability that between 4 and 7 of them (inclusively) started smoking before age 21? 4) Find the probability that at least 8 started smoking before age 21?

Suppose 90% of adult American smokers started smoking before age 21, if a random sample of of 15 smokers of age 21 or older is selected, 1) What is the probability that exactly 10 started smoking before age 21? 2) What is the probability that fewer than 5 started smoking before age 21? 3) Find the probability that between 4 and 7 of them (inclusively) started smoking before age 21? 4) Find the probability that at least 8 started smoking before age 21?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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