For a week, a clothing company tracks the amounts spent by its customers, with the results shown to the right. a) What is the probability that a randomly chosen customer spent $120 or more? b) What is the probability that a randomly chosen customer did not spend less than $80? c) What is the probability that a randomly chosen customer spent between $40 and $159.99?
For a week, a clothing company tracks the amounts spent by its customers, with the results shown to the right. a) What is the probability that a randomly chosen customer spent $120 or more? b) What is the probability that a randomly chosen customer did not spend less than $80? c) What is the probability that a randomly chosen customer spent between $40 and $159.99?
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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![For a week, a clothing company tracks the amounts spent by its customers, with the results shown to the right.
a) What is the probability that a randomly chosen customer spent $120 or more?
b) What is the probability that a randomly chosen customer did not spend less than $80?
c) What is the probability that a randomly chosen customer spent between $40 and $159.99?
a) What formula should be used to find the probability that a randomly chosen customer spent $120 or more?
- \[ P(\text{120 or more}) = 1 - P(\text{120 - $159.99}) \]
- \[ P(\text{120 or more}) = P(\text{120 - $159.99}) \]
- \[ P(\text{120 or more}) = P(\text{120 - $159.99}) + P(\text{160 - $199.99}) + P(\text{\$200 or more}) \]
- \[ P(\text{120 or more}) = 1 - P(\text{120 - $159.99}) + P(\text{160 - $199.99}) + P(\text{\$200 or more}) \]
The probability that a randomly chosen customer spent $120 or more is \( \boxed{\frac{10}{32}} \) (Simplify your answer.)
b) What formula should be used to find the probability that a randomly chosen customer did not spend less than $80?
- \[ P(\text{not less than 80}) = P(S80 - \$119.99) \]
- \[ P(\text{not less than 80}) = \frac{1}{1} - P(\text{120 - $159.99}) \]
- \[ P(\text{not less than 80}) = \frac{1}{1} - P(\text{30 - $39.99}) + P(\text{40 - $79.99}) \]
- \[ P(\text{not less than 80}) = P(\text{30 - $39.99}) + P(\text{40 - $79.99}) + P(\text{80 - $119.99}) \]
The probability that a randomly customer did not spend less than $80 is \( \boxed{\frac{8}{32}} \)(Simplify your answer.)
c) What](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc56b3bff-26b7-4f28-9b8d-5c65e8bb1b58%2Fe00afc45-2782-47ff-851a-33bdf3b80765%2Fkswb4xm_processed.png&w=3840&q=75)
Transcribed Image Text:For a week, a clothing company tracks the amounts spent by its customers, with the results shown to the right.
a) What is the probability that a randomly chosen customer spent $120 or more?
b) What is the probability that a randomly chosen customer did not spend less than $80?
c) What is the probability that a randomly chosen customer spent between $40 and $159.99?
a) What formula should be used to find the probability that a randomly chosen customer spent $120 or more?
- \[ P(\text{120 or more}) = 1 - P(\text{120 - $159.99}) \]
- \[ P(\text{120 or more}) = P(\text{120 - $159.99}) \]
- \[ P(\text{120 or more}) = P(\text{120 - $159.99}) + P(\text{160 - $199.99}) + P(\text{\$200 or more}) \]
- \[ P(\text{120 or more}) = 1 - P(\text{120 - $159.99}) + P(\text{160 - $199.99}) + P(\text{\$200 or more}) \]
The probability that a randomly chosen customer spent $120 or more is \( \boxed{\frac{10}{32}} \) (Simplify your answer.)
b) What formula should be used to find the probability that a randomly chosen customer did not spend less than $80?
- \[ P(\text{not less than 80}) = P(S80 - \$119.99) \]
- \[ P(\text{not less than 80}) = \frac{1}{1} - P(\text{120 - $159.99}) \]
- \[ P(\text{not less than 80}) = \frac{1}{1} - P(\text{30 - $39.99}) + P(\text{40 - $79.99}) \]
- \[ P(\text{not less than 80}) = P(\text{30 - $39.99}) + P(\text{40 - $79.99}) + P(\text{80 - $119.99}) \]
The probability that a randomly customer did not spend less than $80 is \( \boxed{\frac{8}{32}} \)(Simplify your answer.)
c) What
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