# defective

532 results, page 2

### Probability???

The probability of a CD case being defective is 1/520. If the factory makes 7,800 cases per week, how many are likely to be defective? I don't understand this its so confusing :(

A company finds 5 defective toys in a sample of 600. Predict how many defective toys are in a shipment of 24,000. A. 40 B. 166 C. 200 D. 20

### statistics

Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that 5 or more will be defective

### math-stats

There are 40 items in which 8 are defective. if 6 items are selected at random, what is the probability that 4 are non defective?

### Probability Math

Through a mix up on the production line, 5 defective light bulbs were shipped out with 32 good ones. If 4 are selected at random, what is the probability that at least 3 of them are defective?

### statistics

Container 1 has 8 items, 3 of which are defective. Container 2 has 5 items, 2 of which are defective. If one item is drawn independently from each container: Find the probability distribution for X defined as the number of defective items drawn(Hint: You have to use both ...

### finite math

a quality control engineer at a light bulb plant estimated that 1% of the bulbs it sells are defective. if you purcgase a package of 3 bulbs what is the probability that exactly one of them is defective?

### finite math

a quality control engineer at a light bulb plant estimated that 1% of the bulbs it sells are defective. if you purcgase a package of 3 bulbs what is the probability that exactly one of them is defective?

### Statistics

Half of a set of the parts are manufactured by machine A and half by machine B. Four (.04) of all the parts are defective. Six percent (6%) of the parts manufacture on machine A are defective. Find the probability that a part was manufactured on machine A, given the part is ...

### PROBABILITIES

Factories A and B produce computers. Factory A produces 3 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.037 and the probability that an item produced by factory B is defective is 0.05. A computer is selected at ...

### math

A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of twelve calculators is sent out containing three defective calculators and nine working calculators. A customer buys five of these ...

### math

A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of twelve calculators is sent out containing three defective calculators and nine working calculators. A customer buys five of these ...

### statistics 221

A shipment of 35 computers contains three that are defective. How many ways can a small business buy four of these computers and receive no defective ones. a. 128 b. 35960 c. 52360 d. 6545

### Statistics

A shipment of portable radios contains 14 good radios and 3 defective ones. If two are randomly selected (without replacement) and tested, find the probability that at least one will be defective.

### Statistics

A shipment of portable radios contains 14 good radios and 3 defective ones. If two are randomly selected (without replacement) and tested, find the probability that at least one will be defective.

### Data Management

In a manufacturing process, it is estimated that only 2% of the bolts that are machined are declared defective, that is, they are either too large or too small. In a package of 50 bolts, what is the probability that there is at least one defective bolt?

### Intro to Probability

Widgets are produced at a certain factory by each of three machines A, B and C. These machines produce 1000, 600 and 400 widgets per day, respectively. The probability that a given widget is defective is 4% for one produced by Machine A, 3% if produced by Machine B, and 2% if ...

### Please can help me solving my problems(Probality)

A manufacturer makes mobile phone. The manufacturer employs are inspector to check the quality of its product. The inspector tested a random sample of the phone being defective as 0.049. Ashmita buys three of the phones made by the manufacturer. Find the probability that. 1) ...

### Statistics

A Manufacturer of torque converters claim only 1% of them are defective. A. In a shipment of 12 torque converters calculate the probability exactly 2 converters are defective. B. In a shipment of 35 converters, calculate the probability at least 1 converter is defective.

### Data Management

Sorry...i wrote the previous questions wrong.. The producer of HB pencils has 720 pencils randomly chosen from each day's productions. A defect rate of 15% is acceptable. a) Assuming that 15% of all manufactured pencils are defective, what is the probability of finding at ...

### statistic

a shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units

### math 221n

A shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units?

### math

A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that exactly 5 bulbs in a carton of 144 will ne defective?

### Math

during the warranty period, 6% of their computers are returned because they have defective keyboards, 5% are returned because they have defective disk drives, and 1% are returned because both the keyboard and the disk drive are defective. What is the probability that a ...

### Statistics

A stationary store has decided to accept a large shipment of ball-point pens if an inspection of 20 randomly selected pens yields no more than two defective pens. a) find the probability that this shipment is accepted if 5% of the total shipment is defective. b) find the ...

### stastics

If 1.5% of the bolts made by an automotive factory are defective, what is the probability that in a shipment of 200 bolts, there are 6 defective bolts? Place your answer, rounded to four decimal places, in the blank.

### math

Suppose that 30% of a company's television sets are manufactured at a plant in Portland and 70% at a plant in Houston. Of those made in Portland, 3% are defective, and of those made in Houston 9% are defective. If you buy a defective set from the company, what is the ...

### Statistics

Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective .(you may take the distribution to be Poisson; e-4= 0.0183).

### math

A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that exactly 5 bulbs in a carton of 144 will ne defective? Did not understand the posted answer before, need it simplified.

### Maths

In a large lot of electric light bulbs,5% of the bulbs are defective.calculate the probability that a random sample of 20 will contain at most 2 defective bulbs? Try ;->Pr=nCx p^xq^n-x .pr(2D)=20C2(0.05)^2(0.95)^18;->=2.2/ANS

### OPRE

A producer is very proud of the peaches he grows. He claims that, on average, 10% or less of his peaches in a bushel are defective. You take a sample of 400 peaches and find that 50 are defective. If Î± = 0.025, what will be the decision?

### Math

In a shipment of 1000 light bulbs 1/40 of the bulbds were defective. What is the ratiio of defective bulbs to nondefective bulbs?

### Probability

Factories A and B produce computers. Factory A produces 2 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.012 and the probability that an item produced by factory B is defective is 0.04. A computer is selected at ...

### math

A manager of an electronics store takes a random sample of large shipments of circuit boards to determine if he will accept the delivery. he randomly samples 20 boards from a shipment and will reject the delivery if more than 1 circuit board is defective. if the manufacturer ...

### statistics

In a random sample of 400 electrical components,100 are found to be defective.if the hypothesis is that 20% of the components are defective,what is the standard error of the sample proportion

### math

A shipment of 9 printers contains 4 that are defective. Find the probability that a sample of size 4​, drawn from the​ 9, will not contain a defective printer . the probability is ?

### statistics

A certain type of dvd player is sold at just two stores. 30% of sales are from store A and 70% of sales are from store B. 2.7% of the dvd players sold at store A are defective while 3.7% of the dvd players sold at store B are defective. If Kate receives one of these dvd ...

### math

In a shipment of 50 calculators,4 are defective. Two calculators are randomly selected and tested. What is the probability that both are defective if the first one is not replaced after being tested?

### Math

The panels for the Pulsar 32-inch TV are manufactured in three locations and then shipped to the main plant for final assembly. Plants A, B, and C supply 50%, 30%, and 20%, respectively of the panels.The quality-control department of the company has determined that 1% of the ...

### statistic and probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

### statistics and probability

A company manufactures washers, about 5% of which are defective. If a random sample of 100 washers are inspected, what is the probability that fewer than 4 are defective?

### STATISTICS

The probability that a certain production process will produce a defective part is 0.20. If a box contains 12 parts, the probability that it will contain 6 defective parts is?

### statistics

Factories A, B and C produce computers. Factory A produces 3 times as many computers as factory C, and factory B produces 6 times as many computers as factory C. The probability that a computer produced by factory A is defective is 0.02, the probability that a computer ...

### probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

### STATISTICS

The probability that a certain production process will produce a defective part is 0.20. If a box contains 12 parts, the probability that there will be 6 or 7 defective parts is ??

### Algebra1

A CELL PHONE ORDDERS 500 NEW PHONES FROM A MANFACTURE.IF THE PROBABLITY OF A PHONE BEING DEFECTIVE IS 2.6% PREDICT HOW MANY OF THE PHONES ARE LIKELY TO BE DEFECTIVE.ROUND TO THE NEAREST WHOLE NUMBER

### EEE

the solve of the shipment of 10 items has 2 items defective and 8 items are non defective.IN THE inspection of the shipment a sample of items will be selected and tested.if a defective items is found the shipment of 10 items will rejected.in a sample of 5 items what is the ...

### Math Finite

A box contains 15 pens of which 4 are defective. A random sample of 3 pens is taken without replacement and without regard to order. What is the probability of selecting at least one defective pen?

### statistics

5. Suppose a manufacturer of computer chips is experiencing an average of 2% defective chips. (a) If a lot contains 1000 chips, what is the probability that more than 25 chips are defective? HINT. Use the normal approximation to the binomial.

### Math

In a shipment of 400 parts 14 are found to be defective how many defective parts should be expected in a shipment of 1000? 125

A company manufactured 1,000 televisions. Testing showed that 20 of the televisions were defective. PART A: What is the experimental probability that the next television will be defective? PART B: Based on the probability in PART A, how many of the next 5,000 televisions ...

### science

Two machines A and B produce respectively 60% and 40% of the total number of items of a factory. The percentages of defective output for A and B are 3% and 2% respectively. Suppose an item is selected at random, and is found to be defective. The probability that the item was ...

### Statistics

There are 6 batteries. Two are defective. If you pull out two batteries, what is the probability that neither are defective? Is this how you solve it? 4/6 X 3/5

### statistics

in a shipment of 7 items there are three defective items. at random 4 items are selected what is the expected number of defective items?

### Probabilities

Need some help please! A box contains four good light bulbs and three defective ones. Bulbs are selected one at a time (without replacement). Find the probability that the second defective bulb is found on the third selection.

### Math

Tony works in a factory that produces 1,000 computers each day. When 50 computers were sampled, it was found that 7 were defective. Estimate how many defective computers are made each day. 1. 140 2. 7 3. 4.

### Math

A manufacturer samples 100 wires for quality testing. Four of the wires are found to be defective. If 750 wires are produced in one hour, how many should the manufacturer expect to be defective? A.30 B.60 C.75 D.96

### math

im a girl ok um Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts? A. 15 B. 30 C. 38 D. 67

### Math

Tony works in a factory that produces 1,000 computers each day. When 50 computers were sampled, it was fount that 7 were defective. Estimate how many defective computers are made each day.

### Probability, Stats

For every 1000 batteries produced by a manufacturer 15 are defective. What is the probability that 100 randomly chosen batteries will have exactly 2 defective batteries?

### math

in a shipment of 20 computers, 3 are defective three computers are randomly selected and tested. what is the probability that all 3 are defective if the first and second ones are not replaced after being tested. a. 1/760 b.1/1140 c.27/8000 d.3/5000 i chose D, is this correct

### statistics

at the tire store, 10 out of every 100 tires are defective. if your parents randomly choose and purchase 4 new tires for a family vehicle from a set of 100 newly shipped titres, what is the probability that all four will be defective

### Probability

An assembly line has two inspectors. The probability that the first inspector will miss a defective item is 0.05. If the defective item passes the first inspector, the probability that the second inspector will miss it is 0.01. What is the probability of the event that a ...

### statistics

In a box of thirty AAA batteries, there are three defective batteries. Two batteries are randomly selected and tested. What is the probability that both are defective, if the first one is not replaced after being tested?

### math

A manufacture of a cotter pins know that 5¨G of his product is defective if he sells cotter pins in boxes of 100 and guarantees that no more than to pins will be defective, what is the approximate probability that a box will fail to meet that guaranteed quality?

### Math

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?

### Math

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?

### math

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?

### math

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?

### math

Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were defective. Estimate how many telephones are defective each day.

### Math

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts? A. 15 B. 30 C. 38 D. 67

### Math

An electronic store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected to be sent to a local high school. How many selections can be made? How many of this selections will contain two defective calculators?

### math

Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability that four or more car ...

### statistics

In a batch of 97 computer diskettes, 8 are defective. A sample of six diskettes is to be selected from the batch.How many of the samples consist of all defective diskettes?

### MATH PROBABILITY

The probability of a machine producing a defective product is .08. Find the probability that, in a run of 200 products, there are exactly 12 defective products

### math/statistics

From a shipment of 65 transistors, 4 of which are defective, a sample of 6 transistors is selected at random. (a) In how many different ways can the sample be selected? ways (b) How many samples contain exactly 3 defective transistors? 166320 samples (c) How many samples do ...

### Math

Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability that four or more car ...

### Statistics

Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability that four or more car ...

### math

Of the total output of a factory, 35% is produced by workshop A and 65% by workshop B.on the average 15 out of 1000 times produced by A are defective. If an item drawn at random from the whole output is defective, what is the probability that it is from A

### Math

A sample of 4 different calculators is randomly selected from a group containing 47 that are defective and 29 that have no defects. What is the probability that all four of the calculators selected are defective? Round to four decimal places.

### Math

My question is to get a better understanding of this. Basically, these two problems, I did it WITHOUT replacement. So I would multiply each defects and so forth. My question is, would I have to subtract the total from 1 in the second question? I am not exactly clear on when to...

### PROBABILTY-STATS HELP

A product is assembled from 3 components X,Y,Z and the probability of these components being defective is 0.01, 0.02,0.05. i have to find the probability that the assumed product will not be defective? can someone explain to me, how do it? thanks

A shipment of 50 parts contains 11 defective parts. Suppose 3 parts are selected at random, without replacement, from the shipment. What is the probability that exactly 2 parts are not defective?

### quantitative techniques

a manufacturer of a cotter pins know that 5% of his product is defective if he sells cotter pins in boxes of 100 pins and guarantee that no more than 10 pins will be defective find the probability that a box will fail to meet the guaranteed quality

### Statistics/Binomal

I really need help I do not understand how to start this problem. A machine that manufactures automobile parts produces defective parts 15% of the time. If 7 parts produced by this machine are randomly selected, what is the probability that at least 3 of the parts are ...

### Stat

Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability it takes 10 circuit boards to be inspected before a defective board is found is

### probability

six out of every 400 cans of paint are found to be defective. If you buy four cans of paint,what is the probability that one can will be defective.

### statistics

A shipment of 50 parts contains 12 defective parts. Suppose 3 parts are selected at random, without replacement, from the shipment. What is the probability that all 3 parts are defective?

### math

Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line ifhe finds more than 1/50 of the sample to be defective. About how ...

### statistics

Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is

### statistics

Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is

### math

A factory finds out that on the average 20% of bolts produced by the given machine will be defective.if 10 bolts are selected at random from the day's production of this machine,find the probability that 1.exactly 2 will be defective. (this question is base on probability and ...

### Algebra 1

A community group orders 1,250 water bottles to donate to the runners in a marathon. If the probability of a water bottle being defective is 1.2%, predict how many of the water bottles are likely to be defective. Round your answer to the nearest whole number. a. 12 b. 15 c. ...

### Math

In a shipment of 400 parts, 15 were found to be defective. How many defective parts should be expected in a shipment of 1000 parts?

### Maths

A product is assembled using four components. Each component has a 20% probability of being defective. What is the probability that the assembled product is also defective?

### statistics

A company has four production sections viz., S1, S2, S3 and S4 which contribute 30%, 20%, 28% and 22% of the total output. It was observed that those sections respectively produced 1%, 2%, 3% and 4% defective units. If a unit is selected at random and found to be defective, ...

### probability

The J.O. Supplies Company buys calculators from a Korean supplier. The probability of a defective calculator is 10%. If 15 calculators are selected at random, what is the probability that 4 or more of the calculators will be defective

### statistics

4.90. Defective Equipment. A piece of electronic eqipment contains six computer chips, two of which are defective. Three chips are selected at random, removed from the piece of equipment, and inspected. Let x equal the number of defectives observed, where x = 0, 1, or 2. Find ...

### statitics

Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8% of all such tires produced are defective. What is the probability that in such a sample 150 or fewer tires will be defective

### statitics

Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8% of all such tires produced are defective. What is the probability that in such a sample 150 or fewer tires will be defective