A. What proportion of the bank's Visa cardholders pay more than 39.45 dollars in interest? Proportion B. What proportion of the bank's Visa cardholders pay more than 46.24 dollars in interest? Proportion = Proportion = C. What proportion of the bank's Visa cardholders pay less than 15.51 dollars in interest? =

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Because of the relatively high interest rates, most consumers attempt to pay off their credit card bills
promptly. However, this is not always possible. An analysis of the amount of interest paid monthly by
a bank's Visa cardholders reveals that the amount is normally distributed with a mean of 30 dollars
and a standard deviation of 7 dollars.
A. What proportion of the bank's Visa cardholders pay more than 39.45 dollars in interest?
Proportion =
B. What proportion of the bank's Visa cardholders pay more than 46.24 dollars in interest?
Proportion =
C. What proportion of the bank's Visa cardholders pay less than 15.51 dollars in interest?
Proportion =
D. What interest payment is exceeded by only 20.9% of the bank's Visa cardholders?
Interest Payment =
Transcribed Image Text:Because of the relatively high interest rates, most consumers attempt to pay off their credit card bills promptly. However, this is not always possible. An analysis of the amount of interest paid monthly by a bank's Visa cardholders reveals that the amount is normally distributed with a mean of 30 dollars and a standard deviation of 7 dollars. A. What proportion of the bank's Visa cardholders pay more than 39.45 dollars in interest? Proportion = B. What proportion of the bank's Visa cardholders pay more than 46.24 dollars in interest? Proportion = C. What proportion of the bank's Visa cardholders pay less than 15.51 dollars in interest? Proportion = D. What interest payment is exceeded by only 20.9% of the bank's Visa cardholders? Interest Payment =
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