e) Use the binomial probability distribution to find the probability more than 1: the calls are successful. f) Calculate the expected value of this distribution. g) Calculate the standard deviation of this distribution.
e) Use the binomial probability distribution to find the probability more than 1: the calls are successful. f) Calculate the expected value of this distribution. g) Calculate the standard deviation of this distribution.
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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I need help with d,e,f,g
Transcribed Image Text:13. IKEA is a Swedish company that sells ready-to-assemble furniture. Shoppers contact
customer service to find a nearby store, for online shipping questions, and even for help
with assembly. IKEA classifies all telephone calls to its customer support staff by the
amount of time the customer is on hold. If the customer is on hold for no more than 60
seconds, then the call is classified as successful (which feels more like a miracle). The
supervisor in technical support claims 70% of all calls are successful. Suppose 20 calls
are selected at random. Round your answer to three decimal places as necessary.
a) Use the binomial probability distribution to find the probability 15 of the calls are
successful
b) Use the binomial probability distribution to find the probability of at least 11 of
the calls are successful.
c) Use the binomial probability distribution to find the probability at most 7 of the
calls are successful.
d) Use the binomial probability distribution to find the probability fewer than 12 of
the calls are successful.
e) Use the binomial probability distribution to find the probability more than 13 of
the calls are successful.
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Transcribed Image Text:d) Use the binomial probability distribution to find the probability fewer than 12 of
the calls are successful.
e) Use the binomial probability distribution to find the probability more than 13 of
the calls are successful.
f) Calculate the expected value of this distribution
g) Calculate the standard deviation of this distribution.
D Focus
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Ins
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