Access our large collection of Probability step-by-step solutions available
-
Solution: A videotape has an average of one defect every 1000 feet. Find the probability of at least one defec #19286
-
(See Solution) The average number of phone inquiries per day at the poison control center is four. Find the probabi #19287
-
[Solved] Shirts are packed at random in two sizes, regular and extra large. Four shirts are selected from a b #19288
-
[Solution] The average admission charge for a movie is $5.39. If the distribution of admission charges is norma #19305
-
[Solved] The average price of a personal computer (PC) is $949. If the computer prices are approximately norm #19311
-
(Solved) If two dice are rolled one time, find the probability of getting these results: a) a sum of 5 b) a s #19353
-
[Solved] If 35% of customers report good service, find the probability that three randomly selected customers #19355
-
Solution: In an auto store there are 300 customers, 75 of whom will buy at least one item. If 3 customers are #19356
-
Solution: Three children in a class of 16 children are going to be awarded prizes for a writing contest. How m #19357
-
[Solved] How many ways can five scholarships of $1000 each be given to five students from a group of 15 appli #19358
-
[Solution] If 25% of the people eat out once a week. 42% take home-prepared food once a week and 16% do both, f #19359
-
Solution: In a certain high-risk group, the chances of a person having suffered a heart attack are 55%. If 6 p #19360
-
[Solved] If 30% of commuters ride the train to work, find the probability that if 10 workers are selected, 6 #19362
-
[Solved] A checkout line at a grocery store has an average of 3 people waiting. What is the probability of 7 #19363
-
Solution: A bowl contains 1 red, 1 black, and 1 yellow jellybean. a) Two jellybeans are selected in succession #19368
-
[Solution] How many seven digit telephone numbers are possible if digits can be repeated? #19369
-
[Solved] A doctor has five patients to visit in the next hour. How many different ways can he accomplish his #19370
-
[Solution] Using the numbers 0, 2, 4, 6, and 8, a salesman wants to construct a three-digit number. How many di #19371
-
[Solution] A license plate must have 4 letters. The first letter must be N, the second and third letter #19372
-
[Solved] How many different ways can a moviegoer select three movies from a possible choice of nine m #19373
-
[Solution] A coin is tossed 9 times. How many different outcomes are there? #19374
-
(Solved) A new car buyer had the choice of 3 body styles, 2 engines and 7 colors. How many different #19375
-
[Solution] How many different 3-letter permutations can be formed from the letters in the word "count". #19376
-
[Solved] A committee of 6 people must be selected from 9 men and 8 women. How many ways can this be d #19377
-
(Solved) How many ways can 5 books be arranged on a shelf, if they can be selected from 11 books? #19378
-
(Solved) When a card is drawn from a deck, find the probability of getting a) diamond b) a 5 or a hea #19379
-
[Solved] In a recent survey 8 people watched ABC, 7 people watched NBC, and 12 people watched CBS. If a perso #19380
-
[Solved] The probability that a person will get a cold this year is 0.7. If 4 people are selected at #19381
-
(Solved) Suppose you hold 30 tickets in a drawing for a color television. There were 500 tickets sold #19382
-
(See Solution) One card is drawn from an ordinary deck of playing cards. What is the probability of getting a card #19383
-
[Solution] When two dice are rolled, find the probability of getting a) a sum of 4 or 11 b) a sum greater than #19384
-
Solution: If 85% of all people have brown eyes and six people are selected at random, find the probabi #19385
-
[Solution] In a College Algebra class there are 18 freshmen and 17 sophomores. Eight of the freshmen ar #19386
-
[Solution] Three cards are drawn from a deck without replacement. What is the probability of selecting #19387
-
(Solved) In a recent study, the following data were obtained in response to the question, "Do you favor the p #19388
-
[Solution] The probability that a person has a VCR, given that he or she has a color T.V. is 0.45. The probabil #19389
-
[Solved] If a gambler rolls two dice and gets a sum of 9, he wins $10, and if he gets a sum of four, he wins #19391
-
Solution: If 23% of all commuters ride to work in car pools, find the probability that if eight worker #19392
-
[Solution] If 60% of all women are employed outside the home, find the probability that in a sample of #19393
-
[Solved] 10% of the cameras sold in America are made in Europe, 70% are made in the U.S., and 20% are made in #19395
-
[Solved] If 4% of the population catches a certain disease, find the probability that in a group of 200 peopl #19396
-
[Solved] A door-to-door salesman averages 3 sales a day. Find the probability of getting 6 sales in a day if #19397
-
(Solved) A librarian knows that 14% of the borrowers will not return the books by their due dates. If a sampl #19404
-
[Solved] A region is prone to flooding once every eight years. The probability of flooding in any one year is #19515
-
Solution: A blood donor center conducted a study over a one-year period and found that an average of 55 donors #19528
-
[Solution] In a bank call center, it is determined over a one-year period that 30% of the outgoing calls are an #19529
-
(See Solution) A student applies to five different colleges. Each college has an admission rate of 20%, meaning tha #19532
-
[Solved] You walk into a classroom containing 20 other people. What is the probability that at least one of t #19533
-
[Solved] You are a Delaware State Trooper on a roadblock. Since it is New Year’s Eve, you know from prior exp #19539
-
[Solved] An American style roulette wheel has individual compartments for the numbers 1 to 36, plus 0 and 00. #19541
-
[Solution] On Monday mornings, the First National Bank only has one teller window open for deposits and withdr #19543
-
[Solution] Tompkins Associates reports that the mean clear height for a Class A warehouse in the US is 22 feet #19545
-
[Solution] Given the following network with activities and times estimated in days (a) What are the critical pa #19593
-
Solution: The length of time it takes students to complete a statistics examination is uniformly distributed a #19616
-
[Solution] A certain drug is known to be 63% effective in curing a certain disease. If eight people with the di #19635
-
(Solved) Someone offers to give you 2 million dollars (this happens every day, doesn’t it?) to buy a million #19636
-
(See Solution) Your daily production run produces 1500 printed circuit boards and your current defect rate is 0.8%. #19637
-
[Solved] What are the odds of being dealt a straight flush (5 consecutive cards of the same suit) in 5 card d #19638
-
[Solution] If events A and B are mutually exclusive, P(A) = 0.52, and P (B) = 0.35, what is : a. P(A’ and B’) #19639
-
[Solved] If P(A) = .33, P(B) = .49 and P(A/B) = .33 find a. P(A and B) b. P(A or B) #19640
-
[Solved] A women’s clothing store owner buys from three companies: A, B, and C. The number of items purchased #19641
-
[Solution] A women’s clothing store owner buys from three companies: A, B, and C. The number of items purchased #19642
-
(See Solution) Electrospec makes very complex circuit boards and there is a 30 percent chance that an inspector wil #19643
-
[Solution] This table gives the joint probability distribution for two random variables which are the annual sa #19709
-
[Solution] All human blood can be “ABO-typed” as one of O, A, B or AB, but the probability distribution of the #19719
-
[Solution] The table below describes (approximately) the distribution of students by gender and college at a #19721
-
(Solved) Data from a National Health Survey show that men’s average weight is normally distributed with a mea #19722
-
[Solved] All human blood can be “ABO-typed” as one of O, A, B or AB, but the probability distribution of the #19729
-
[Solved] The table below describes (approximately) the distribution of students by gender and college at a #19731
-
[Solution] It has been suggested that an investment portfolio selected randomly by throwing darts at the stock #19770
-
(See Solution) An automobile dealership records the number of cars sold each day. The data are used in calculating #19784
-
[Solved] A computer laboratory in a school has 33 computers. Each of the computers has 90% reliability. Allow #19786
-
(See Solution) Laptop computers produced by a company have an average life of 38.36 months. Assume that the life of #19788
-
(Solved) A recent survey published in Business Week concludes that Gatorade commands an 83% share of the spor #19789
-
[Solved] Out of 140 million cellular telephone subscribers in the Unites States, 36 million use Verizon. a. #19790
-
(Solved) The Mean time between failures (MTBF) of a hydraulic press is to be estimated assuming that the time #19791
-
(Solved) A couple plans to have three children. Use the letter G to indicate the event that a child is a girl #19811
-
[Solution] Use the following table for questions 1 and 2. Butterflies Red Blue Orange Yellow #19822
-
[Solved] Use the following table for questions 1 and 2. Butterflies Red Blue Orange Yellow #19823
-
[Solution] Choose the procedure that will allow dental patients to be researched using a binomial distribution: #19834
-
[Solution] It is reported that the percentage of American men who say they would marry the same woman if they h #19852
-
[Solved] The A.C. Nielsen Company reports that about 80% of the U.S. households in a certain area of New York #19855
-
(See Solution) Gender of children. A couple has 3 children. Find each probability. a) All boys b) all girls or all #19974
-
[Solution] Endangered species. The number of endangered species for several groups are listed here: Mammals Bir #19975
-
[Solution] Utility patents. Consider this table concerning utility patents granted for a specific year. Corpora #19977
-
[Solution] Fatal accidents. The American automobile association (AAA) reports that of the fatal car and truck a #19978
-
(See Solution) Board of Directors. In a board of directors composed of 8 people, how many ways can 1 chief executiv #19979
-
[Solution] Freight train cars. In a train yard there are 4 tank cars, 12 boxcars, and 7 flatcars. How many ways #19980
-
[Solved] A service station will be supplied with gasoline once a week. Its weekly volume of sales, x, in 10,0 #19988
-
[Solved] Records show that eighty percent of all patients admitted to Alaska Regional Hospital pay their bill #20003
-
[Solved] Please solve the Binomial Probability Problem by utilizing not the Binomial Table but the Binomial D #20005
-
[Solution] A multiple choice test in Elementary Algebra has ten questions, each question has five possible answ #20008
-
Solution: The Maryland food co-op makes sandwiches to order out of 3 kinds of bread 3 spreads and 5 types of v #20054
-
(See Solution) In a clinical trial of Lipitor, a common drug used to lower cholesterol, 863 patients were given a t #20110
-
[Solution] Suppose X is a discrete random variable. If Pr(X < 5) = 5/6, and Pr(X < =5) = 11/12, then what is fx #20126
-
Solution: Suppose X is a discrete random variable, and suppose that at every point the value of the probabilit #20127
-
[Solution] Let X be a discrete random variable such that F(a) is constant for a> 10. What can you say about f(k #20129
-
(Solved) If x is a discrete random variable with this cumulative distribution: What is the probability funct #20135
-
[Solution] Let X be a discrete random variable. If f(0) = .5, f(1) = .2, f(2) = .1, f(3) = c, and f(x) = 0 ever #20136
-
(See Solution) Let X be a discrete random variable representing the average of the numbers rolled on two dice. What #20137
-
(See Solution) Let X be a discrete random variable representing the number of the television channel that you last #20138
-
[Solution] What is the variance of a Bernoulli-trial variable when the probability of success is .6 and the pr #20140
In case you have any suggestion, or if you would like to report a broken solver/calculator, please do not hesitate to contact us.