It has been estimated that about 30% of beef contain bacteria to cause problem when partially cooked. Jane bought 15 beef. What is the probability that Jane will have less than 3 bacteria affected beef? Round to 2 decimal places
Hello
p(beef contains bacteria) = 0.3 = 30%
p(beef does not contain bacteria) = 1-0.3 = 0.7
Now use the Binomial distribution
Jane bought 15 beefs, 2 are infected, therefore you need the propabilty: 1 beef is infected and 0 beef is infected
p("less than 3 beefs are infected") = p("0 or 1 or 2 beefs are infected") =