A box contains 40 diodes of which 10 are known to be bad. Diodes are selected at random. If the first diode drawn from the box was good, and this diode was not put back in the box, what is the probability that a second diode drawn will be good?

Q: A monk crossbred plants, which can have purple or white flowers, and obtained 600 plants with white…

A: The number of white flower plant are 600. The number of purple flower plant are 250.

Q: An old computer system has 2,000 components. The failure probability of one of the components, in a…

A: Let p be the probability that a component in a year of operation fails. Given that p = 0.001 Number…

Q: Your daughter is a teacher in a state university. As per her class rule, the probability of not…

A: Given

Q: There are three jars that each contain 10 marbles. The first contains 3 white marbles and 7 red…

A: Given data3 jars with 10 marbles eachJar 1 – 3 white and 7 red marblesJar 2 – 6 white and 4 red…

Q: A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. If 5 wood and 17…

A:

Q: A monk crossbred plants, which can have purple or white flowers, and obtained 686 plants with white…

A: Given, Total number of flowers =686  Plants with white flowers  plants with purple flowers =1076…

Q: A particular gadget contains 50 integrated circuits (ICs). The probability that any one of these ICs…

A:

Q: If math. Professor receives on average of 5 e-mail messages per day from Students, then the…

A:

Q: a sample of 4 different calculators is randomly selected from a group containing 10 that are…

A: Obtain the probability that at least one of the calculators is defective.   The probability that at…

Q: Urn A contains 2 white balls and 1 black ball, whereas urn B contains 1 white ball and 5 black…

A: Let us denote B=black and W=white Given that Urn A contains 2 white balls and 1 black ball So, we…

Q: There are 100 transistors stored in a box. One transistor from that box is defective. A technician…

A: there are 100 transistors stored in a box 01- transistor from that box is defective 99- transistor…

Q: An EE student grabbed three resistors for an electrical circuit's lab. Those resistors are of…

A:

Q: Urn 1 contains 2 red and 4 blue marbles, urn 2 contains 10 red and 2 blue marbles. If an urn is…

A: Introduction: Suppose X and Y are two events, with respective probabilities P (X) and P (Y). Denote…

Q: Two transistors are chosen at random from 12 transistors of which 4 are defective. Find the…

A: Given, Total number of transistors = 12 Defected number of transistors = 4 Crn=n!(n-r)!n!

Q: An assembly line produces USB keys. The probability that each of the keys produced has some type of…

A: Given that  X~negative binomial (r) r=97 P=1- 0.036 =0.964

Q: A traffic control engineer reports that. 75% of the vehicles passing through a checkpoint are from…

A: Given that  75% of the vehicles passing through a check point are from within the state. So the…

Q: One of two urns is chosen at random with one as likely to be chosen as the other. Then a ball is…

A: For the given data Find p ( urn 2 / white ) =?

Q: A circuit to run a model railroad has 43 switches and 9 are defective. If a person selects two…

A: Given that there are 43 switches and 9 are defective. If the person selects two switches at random.…

Q: A sample of 4 different calculators is randomly selected from a group containing19 that are…

A: Obtain the probability that at least one of the calculators is defective. The probability that at…

Q: A Supervisor of a pharmacy found that 30% of the workers receive their spending money from part –…

A: Obtain the probability that at least 3 of them will have part- time jobs. The probability that at…

Q: The percentage of defective transistors produced by a factory is 15%. If a sample of 5 transistors…

A: The percentage of defective transistors produced by a factory is 15%.  A sample of 5 transistors are…

Q: A box contains red and green balls. Two balls are randomly selected without replacement. The…

A: We have to find given probability..

Q: Your son is a teacher in a state university. As per her class rule, the probability of not getting…

A:

Q: Suppose that it is known that in a certain large population, 10 percent of the population is color…

A:

Q: An urn contains 4 white balls and 2 red balls. A second urn contains 8 white balls and 1 red ball.…

A: We have given that,  For first urn :- White balls = 4  Red balls = 2 For second urn :- White balls =…

Q: In a specific type of electronic card, the probability of a transistor being defective is 0.01.…

A:

Q: an urn contains 2 white balls and 8 red balls. a second urn contains 8 white balls and 2 red balls.…

A: From the given information,   First urn contains 2 white balls and 8 red balls. Second urn contains…