Question 624883
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,Re:  TY, finish it Up and You get .011
according to police sources, a car with a certain protection system will be recovered 87% of the time. 
Find the probablity that 4 of 8 stolen cars will be recovered.
  Note: The probability of x successes in n trials is: 
P = nCx* {{{p^x*q^(n-x)}}} where p and q are the probabilities of success and failure respectively. 
In this case p = .87 & q = .13
*[tex \LARGE {{n}\choose{x}}] = nCx = {{{n!/(x!(n-x)!)}}}
 P(4 will be recovered) =  8C4(.87)^4(.13^4)  = {{{70(.87)^4(.13^4)= highlight(.011)}}}