Based on data from a USA Today Snapshot, 72% of adults have accurity concerns about online banking, Suppose 30 adults are randomly selected d) Find the probability that fewer than 10 of the adults have security concerns about online banking. e) Find the probability that between 5 and 10 (inclusive) of the adults have security concerns about online banking.
Based on data from a USA Today Snapshot, 72% of adults have accurity concerns about online banking, Suppose 30 adults are randomly selected d) Find the probability that fewer than 10 of the adults have security concerns about online banking. e) Find the probability that between 5 and 10 (inclusive) of the adults have security concerns about online banking.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Question
15. Based on data from a USA Today Snapshot, 72% of adults have accurity concerns about online banking,
Suppose 30 adults are randomly selected
d) Find the probability that fewer than 10 of the adults have security concerns about online banking.
e) Find the probability that between 5 and 10 (inclusive) of the adults have security concerns about online banking.
Expert Solution
Step 1: Information given is
Probability of adults have accurity concerns about online banking(p)=0.72
sample size(n)=30
Let "x" adults have security concerns about online banking
x~Binomial(n=30,p=0.72)
P(X=x)=
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