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Name: A department store manager wants to investigate whether the method of
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Description: A department store manager wants to investigate whether the method of payment chosen by customer is related to the size of the purchases. The manager analysed a sample of 250 customer purchases. The size of the purchases was categorised as value of p

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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A department store manager wants to investigate whether the method of payment chosen by customer is related to the size of the purchases. The manager analysed a sample of 250 customer purchases. The size of the purchases was categorised as value of purchase above Rs 2,000 or below Rs 2,000. The method of payment was either cash or credit card. There were 82 customers who had purchases less then Rs 2000. The number of customers who paid through credit card was 134. There were 51 customers having purchases less than Rs 2,000 and also paid trough cash.

Present the above data using a suitable visualization method.
One of these 250 customers was selected randomly. What is the probability that the selected customer had purchases more than Rs 2,000?
A randomly selected customer was found to have paid through credit card. What is the probability that his purchases were less than Rs 2,000.

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