A manufacturer has shipped 39 cameras to an electronics store, of which 3 are defective. If...
A manufacturer has shipped 39 cameras to an electronics store, of which 3 are defective. If the electronics store sold 27 cameras before discovering that some were defective, what is the probability that at least one defective camera was sold? (Hint: C(36,27)/C(39/27) is the probability that no defective cameras were sold.)
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A manufacturer has shipped 39 cameras to an electronics store,
of which 3 are defective. If...
A manufacturer has shipped 49 cameras to an electronics store, of which 6 are defective. If...
A manufacturer has shipped 49 cameras to an electronics store, of which 6 are defective. If the electronics store sold 25 cameras before discovering that some were defective, what is the probability that at least one defective camera was sold? hint (Hint: StartFraction Upper C left parenthesis 43 comma 25 right parenthesis Over Upper C left parenthesis 49 comma 25 right parenthesis EndFraction
Suppose 4 out of 40 batteries shipped to an auto parts store are defective. A fleet...
Suppose 4 out of 40 batteries shipped to an auto parts store are defective. A fleet manager then buys 6 of the batteries from the store. What is the probability that at least 3 of the batteries purchased by the fleet manager are defective?
Ivan runs an electronics store specializing in digital cameras. He has been in business long enough...
Ivan runs an electronics store specializing in digital cameras. He has been in business long enough to realize that most consumers of pointand-shoot cameras are mainly concerned about two attributes: size and zoom. Suppose that camera sizes can be classified as small, medium, and large and that zooms come in three ranges, 15x, 30x and 40x. The smaller the camera and the greater the zoom, the better the camera is. Ivan further realizes that most people do not have much...
1.) Suppose that a box contains 8 cameras and that 3 of them are defective. A...
1.)
Suppose that a box contains 8 cameras and that 3 of them are
defective. A sample of 2 cameras is selected at random. Define the
random variable X as the number of defective cameras in the
sample.
Hint: Make a probability tree for selecting 2 cameras without
replacement.
Write the probability distribution for X.
k
P(X=k)
What is the expected value of X?
2.)
Assume that a procedure yields a binomial distribution with a
trial repeated n=5n=5 times. Find...
A company has 2 factories that produce digital cameras, Factory A and Factory.B. Factory produces 3...
A company has 2 factories that produce digital cameras, Factory A and Factory.B. Factory produces 3 times as many digital cameras as Factory A does. 23% of digital cameras produced by factory A are defective. 8% of digital cameras produced by Factory B are defective. What is the probability that a digital camera was produced by factory.B given that it is defective? (Round to nearest percentage) A. 20 B. 10 C.40 D. 51 m.
Suppose it is known that 4 out of 50 batteries shipped to an auto parts store...
Suppose it is known that 4 out of 50 batteries shipped to an auto parts store are defective. A fleet manager then buys 7 of the batteries from the store. What is the probability that at least 3 of the batteries purchased by the fleet manager are defective?
2. Suppose an electronics store receives 30 graphing calculators. a. How many different ways can the...
2. Suppose an electronics store receives 30 graphing calculators. a. How many different ways can the store select 4 calculators from among the 30 to send to a customer? b. If 6 of the calculators are defective, how many of the selections contain no defective calculators? c. Use the results of parts a and b to calculate the probability that the customer receives at least one defective calculator. d. How many of these selections contain 1 defective calculators? Combine this...
A manufacturer of computer chips claims that the probability of a defective chip is 0.014. The...
A manufacturer of computer chips claims that the probability of a defective chip is 0.014. The manufacturer sells chips in batches of 270 to major computer companies. a. How many defective chips would you expect in a batch? (Round the final answer to 2 decimal places.) Number of chips b. What is the probability that none of the chips are defective in a batch? (Round the final answer to 4 decimal places.) Probability c. What is the probability at least...
1. A manufacturer of processing chips knows that 2% of its chips are defective in some...
1. A manufacturer of processing chips knows that 2% of its chips are defective in some way. Suppose an inspector randomly selects 4 chips for an inspection. Assuming the chips are independent, what is the probability that at least one of the selected chips is defective? 2. A box contains 4 red marbles, 3 green marbles, and 2 blue marbles. One marble is removed from the box and it is not replaced. Another marble is drawn from the box. What...
Sifton Electronics Corporation manufactures and assembles electronic motor drives for video cameras. The company assembles the...
Sifton Electronics Corporation manufactures and assembles electronic motor drives for video cameras. The company assembles the motor drives for several accounts. The process consists of a lean cell for each customer. The following information relates only to one customer's lean cell for the coming year. Projected labor and overhead, $4,307,600; materials costs, $27 per unit. Planned production included 5,696 hours to produce 17,800 motor drives. Actual production for August was 1,940 units, and motor drives shipped amounted to 1,340 units....
1.)
Suppose that a box contains 8 cameras and that 3 of them are
defective. A sample of 2 cameras is selected at random. Define the
random variable X as the number of defective cameras in the
sample.
Hint: Make a probability tree for selecting 2 cameras without
replacement.
Write the probability distribution for X.
k
P(X=k)
What is the expected value of X?
2.)
Assume that a procedure yields a binomial distribution with a
trial repeated n=5n=5 times. Find...
A company has 2 factories that produce digital cameras, Factory A and Factory.B. Factory produces 3 times as many digital cameras as Factory A does. 23% of digital cameras produced by factory A are defective. 8% of digital cameras produced by Factory B are defective. What is the probability that a digital camera was produced by factory.B given that it is defective? (Round to nearest percentage) A. 20 B. 10 C.40 D. 51 m.
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