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Probablity

Forums: Probability, Statistics
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ekkline
 
Reply Thu 30 May, 2013 04:30 pm
According to a report from the Center for Studying Health System Change, 20% of Americans delay or go without medical care because of concerns about cost (The wall street journal, June 26, 2008). Suppose eight individuals are randomly selected.
the probability no one delays or goes without medical care is?
the probability only one person delays or goes without medical care is?
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Type: Question • Score: 0 • Views: 2,322 • Replies: 3
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markr
 
  1  
Reply Thu 30 May, 2013 06:25 pm
@ekkline,
(1-.2)^8 = 0.16777216
.2 * (1-.2)^7 * 8 = 0.33554432
Hanniford
 
  1  
Reply Sun 15 Sep, 2013 02:17 pm
@markr,
So the probability INCREASES as more of the group decline medical care?
What is the probability that all will decline?
markr
 
  1  
Reply Tue 17 Sep, 2013 09:13 pm
@Hanniford,
0.2^8 = 0.00000256
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