Probability Questions & Answers

Probability Questions & Answers (It has been estimated that about 30% of frozen chickens...) The mean and standard deviation of the number of contaminated chickens in a crate are - ANSWER: mean = 7.2 , StD= 2.24 (It has been estimated that about 30% of frozen chickens...) The probability that a certain crate has more than 4 contaminated chickens is - ANSWER: 0.8889 (Same table of numbers and shit) The expected values of C is: - ANSWER: $2770 (Same table of numbers and shit) Which of the following is the best interpretation of expected value? (In the choices below, "exp (c)" represents expected value you found in 12). - ANSWER: If the company insures a large number of these cars, they can expect the cost per car to average approximately Exp(c) (Table showing numbers and shit) The probability that the insurance company will have to pay a claim of atleast $1000 for a randomly selected car is: - ANSWER: 0.40 a census of the labor force of a large metropolitan area found that the time it takes people to commute to work has a mean of 20.5 min and a sd of 15.4 min. which represents that probability that a sample of 40 has a mean greater than 25 minutes - ANSWER: p (z 25 - 20.5 / 15.4 over sq r 40) A die is loaded so that the number 6 comes up three times as often as any other number, what is the probability of rolling a 1 or a 6 - ANSWER: 1/2 A random variable Y has the following distribution:... The value of the constant C is: - ANSWER: 0.10