Question

It has been estimated that about 30% of frozen chickens contain enough salmonella bacteria to cause illness if improperly cooked. A consumer purchases 12 frozenchickens. What is the probability that the consumer will have no more than 6 contaminated chickens?
(a) 0.961
(b)0.118
(c)0.882
(d)0.039
(e)0.079

Refer to the previous question. Suppose that a supermarket buys 1000 frozen chickens from a supplier. The number of frozen chickens that may be contaminated that arewithin two standard deviations of the mean is between A and B. The numbers A and B are
(a) (90,510)
(b) (290.8,309.2)
(c) (0,730)
(d) (271,329)
(e) (255,345)

Answer 1

Concepts and reason

A binomial distribution is a type frequency distribution used when there are exactly two outcomes from each trial (either a success or failure)

Fundamentals

The density function of Binomial distribution is,

The probability of a success is the same for each trial

The trails are random and independents (outcome of one has no bearing on the outcome of another trial)

The empirical rule describes the 2 standard deviation formula is,

Here, represents the population mean

represents the population standard deviation.

The correct option is: A

From the given information we have

Let denote the contaminated chickens.

Calculate the probability that the consumer will have no more than 6 contaminated chickens.

The correct option is: D

The available information is:

Calculate the mean and standard deviation.

Calculate the two standard deviation mean is between

Ans:

The probability is 0.961

The value of is 217 and 329.

Answer 2

1 ans) Given that It has beenestimated that about 30% of frozen chicken contain enoughsalmonella bacteria to cause illness if improperly cooked
ie p = 0.30
A consumerpurchases 12(n) frozen chickens.
which follows a binomial distribution then the probability that the consumer will have morethan 6 contaminated chickens is given by

Answer 3

[removed]