An electronic company ships a lot of 50 computer hard drives to a store. At the arrival of the shipment, the store manager selects at random three hard drives to test. If the lot had five defective hard drives, find the probability that the number of defective hard drives among the three selected is a) exactly one, b) none, c) at most one

An electronic company ships a lot of 50 computer hard drives to a store. At the arrival of the shipment, the store manager selects at random three hard drives to test. If the lot had five defective hard drives, find the probability that the number of defective hard drives among the three selected is a) exactly one, b) none, c) at most one

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

In a lottery, the top cash prize was $644 million, going to three lucky winners. Players pick five different numbers from 1 to 52 and one number from 1 to 42. A player wins a minimum award of $100 by correctly matching two numbers drawn from the white balls (1 through 52) and matching the number on the gold ball (1 through 42). What is the probabilit of winning the minimum award? The probability of winning the minimum award is (Type an integer or a simplified fraction.)
Suppose that in a senior college class of 500 students, it is found that 210 play cricket, 258 play football, 216 play table tennis, 122 play cricket and football both, 83 play football and table tennis both, 97 play cricket and table tennis both, and 52 play all these sports. If a member of this class is selected at random.Find the probability that the student:a) Plays cricket but does not play footballb) Plays football and table tennis but does not play cricketc) Neither plays cricket nor football
In a lottery game, a single ball is drawn at random from a container that contains 25 identical balls numbered from 1 through 25. Find the probability that the number drawn is a multiple of three or a multiple of four.
A bag has five balls numbered 3, 4, 5, 6, 7 in it. Two times a ball is drawn at random and with replacement (this means the ball is put back in the bag after it had been drawn). Calculate the probability that at least one of the balls drawn had an odd number on it. (Give the answer as a fraction in lowest terms.)
An urn contains 10 marbles, of which five are green, two are blue, and three are red. Three marbles are to be drawn from the urn, one at a time without replacement. What is the probability that all three marbles drawn will be green?
A data from a college shows that a certain exam has 10% passing rate. If 4 students take this exam, Find: a) probability that all of them pass it b) probability that no one pass it c) probability that at least one of them fails
In a certain lottery, an urn contains balls numbered 1 to 30. From this urn, 5 balls are chosen randomly, without replacement. For a $1 bet, a player chooses one set of five numbers. To win, all five numbers must match those chosen from the urn. The order in which the balls are selected does not matter. What is the probability of winning this lottery with one ticket?
The table below shows the number of survey subjects who have received and not received a speeding ticket in the last year, and the color of their cars. Speeding Ticket No Speeding Ticket 102 188 112 178 214 366 Red Car Not Red Car Total Find the probability that a randomly chosen person: a) Has a red car. b) Has a speeding ticket. c) Has a speeding ticket given they have a red car. d) Has a red car given they have a speeding ticket. e) Has a red car and got a speeding ticket. f) Has a red car or got a speeding ticket. Total 290 290 580
If 5 cards are drawn from a standard deck of 52 playing cards, then the probability of getting at most two face cards is O 0.074 0.251 O 0.926 None
Four balls are selected at random without replacement from an urn containing four white balls and six blue balls. Find the probability that:Two of the balls are white, and two are blue.
The table below shows the number of survey subjects who have received and not received a speeding ticket in the last year, and the color of their cars. Speeding Ticket No Speeding Ticket Total Red Car 199 162 361 Not Red Car 123 151 274 Total 322 313 635 Find the probability that a randomly chosen person:a) Has a red car. b) Has a speeding ticket. c) Has a speeding ticket given they have a red car. d) Has a red car given they have a speeding ticket. e) Has a red car and got a speeding ticket. f) Has a red car or got a speeding ticket.
A package of 15 apples contains two defective apples.Four apples are selected at random.a) Find the probability that none of the selected applesis defective.b) Find the probability that at least one of the selectedapples is defective