See the abundant list of Probability solutions available
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(Solved) You roll a dice three times. a. What is the probability it comes up 1 all three times? b. What is t #12227
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(See Solution) You have 8 different books. Three of the books are math books, 2 are art books and 3 are English boo #12228
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[Solution] You have 4 openings for a troubleshooter on the night shift (each position has identical duties). Fi #12229
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[Solved] The opening price of a particular stock is uniformly distributed on the interval [ 353/4,441/4 ]. Wh #12298
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(Solved) The attention span of a two year old is exponentially distributed with a mean of about 8 minutes. Su #12303
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(See Solution) How many ways are there of selecting a president, secretary and treasurer from a group of 17 people? #12366
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[Solution] Event Graph. Do a hand trace (like we did in class) of the following event graph. Make sure to initi #12380
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Solution: Using the Census data in problem 1, above, if one of the 10 families residing in Smallville, OH is s #12388
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[Solution] The OH Registry of Motor Vehicles data reveal the following on the Autos owned by the 10 families re #12389
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[Solution] You draw two cards from a standard deck of 52 cards, without replacement: a. Find P (3 on the first #12432
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(See Solution) A survey conducted of 150 students in the Tutor Center found that 72 of them used the Tutor Center o #12433
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(Solved) John passes 82% of his students overall. His statistic class has 29 students participating. What is #12434
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(See Solution) In your own words, explain whether an election of a candidate for political office is a binomial exp #12437
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Solution: The sales records of a real estate agency show the following sales over the past 200 days: Number #12446
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[Solution] Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at ran #12447
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(Solved) A recent business survey asked theater customers, "Do you prefer online or onsite ticket purchase?" #12455
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(See Solution) Consider the following decision tree. What is the expected value at node 4? #12473
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(Solved) Consider the following decision tree. Which decision, A or B, is best? What is the expected value #12474
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[Solved] Given the following random number ranges and the following random number sequence: 62, 13, 25, 40, 8 #12481
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(Solved) The Urn Problem, continued. (Refer to this A bowl contains three red and two yellow balls. Two bal #12503
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(Solved) In an outpatient clinic, patients are kept in observation in a primary recovery room for 90 minutes #12506
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[Solution] Sample of 200 bolts, of this sample: 24 bolts are defective for workmanship, 34 bolts are defective #12507
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(Solved) The figure is a Venn diagram with some probabilities of events marked on it. In addition to the valu #12508
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[Solution] Suppose that in an assortment of 20 black batteries, there are 5 with defective switches. In a draw #12562
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[Solved] The diameter of a steel ball is normally distributed, with a mean of 0.4 inches and a variance of 0. #12569
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Solution: Suppose a new screening test was developed for skin cancer. The following table was created using 18 #12588
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(See Solution) Consider a group of eight individuals selected from the population of 65 through 74 year olds in the #12589
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Solution: Ajar of marbles contains 25 red and 50 green marbles. If you randomly draw 15 marbles individually w #12623
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[Solution] When you use the Fundamental Counting Principle what are you counting? #12674
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(Solved) Identify a sample space Identify the sample space of the probability experiment and determine the nu #12675
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[Solved] Identify a sample space Determining a person’s blood type (A, B, AB, O) and RH-factor (positive, ne #12676
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[Solved] Recognizing Simple Events Determine the number of outcomes in each event. Then decide whether the ev #12677
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Solution: Job Openings An insurance company is hiring for two positions: an actuary and a claims adjuster. How #12679
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(Solved) Security System The access code for a car’s security system consists of four digits. The first digit #12680
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[Solution] Classifying Types of Probability Classify the statement as an example of classical probability, empi #12683
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[Solution] Probability Experiment A probability experiment consists of rolling a six-sided die and spinning the #12686
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[Solved] Security System The access code for a garage door consists three digits. Each digit can be 0 through #12687
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[Solved] Sunny and Rainy Days You are planning a four day trip to Seattle, Washington, in October. (a) Make a #12688
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[Solved] Graphical Analysis Use the diagram to answer the question What is the probability that registered vo #12689
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(See Solution) Determine whether the statement is true or false. If it is false, rewrite it as a true statement. If #12709
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(See Solution) Summer Vacation The table shows the results of a survey in which 146 families were asked if they own #12714
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Solution: Left-Handed People In a sample of 1000 people, 120 are left-handed. Two unrelated people are selecte #12716
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(Solved) Emergency Savings The table shows the results of a survey in which 142 men and 145 women workers age #12717
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[Solution] There are four people being considered for the position of chief executive officer of Dalton Enterpr #12724
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[Solution] Three employees of a fast food outlet, Janet, Andrea and Bill fill orders at the drive through windo #12769
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[Solution] A small shop averages 8 customers arrivals per half hour. Use the appropriate table to find the foll #12770
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(See Solution) A commuter arrives at a station to catch a train. Although she doesn’t know its exact arrival time #12771
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[Solved] It takes an average of 50 minutes to complete a test. Given this, find the following probabilities. #12773
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[Solved] In a criminal justice class there are 34 students. Of these, there are 14 males, 4 of whom are c #12784
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[Solution] On a 100 question multiple choice test (assume each question has 4 possible answers one of which is #12828
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Solution: Multiple choice questions each have five possible answers (a,b,c,d,e), one of which is correct. Assu #12849
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Solution: There are 7 women and 5 men in a department. How many ways can a committee of 4 people be selected? #12850
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[Solved] At a local university 54.3% of incoming first-year students have computers. If 3 students are select #12851
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Solution: In a civic organization, there are 38 members; 15 are men and 23 are women. If 3 members are selecte #12852
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Solution: Is the pollster lying? A pollster claims that 12 voters were randomly selected from a population of #12940
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[Solution] Determining Whether Gender-Selection Technique Is Effective Assume that in a test of a gender-select #12941
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Solution: Deaths from Horse Kicks A classic example of the Poisson distribution involves the number of deaths #12942
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(Solved) Computer Design In designing a computer, if a byte is defined to be a sequence of 8 bits and each bi #12944
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[Solution] Air Routes You have just started your own airline company called Air America (motto: Where your prob #12945
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[Solved] Finding the number of possible melodies. In Denys Parsons’ Directory of Tunes and Musical Themes, m #12946
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[Solution] Is the researcher cheating? You become suspicious when a genetics researcher randomly selects group #12947
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(See Solution) Identifying discrete and Continuous Random Variables. In the following examples- identify the given #12949
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(See Solution) Finding expected value in craps When you give a casino $5 for a bet on the “pass line” in the game o #12951
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[Solved] Finding expected value for New Jersey’s Pick 4 Game In New Jersey’s Pick 4 lottery game, you pay 50 #12953
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[Solution] Finding Probabilities When Guessing Answers Multiple choice questions each have five possible answer #12954
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[Solution] Color Blindness Nine percent of men and .25% of women cannot distinguish between the colors of red a #12955
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(See Solution) IRS Audits The Hemmingway Financial Company prepares tax returns for individuals. (Moto: “We also wr #12956
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[Solved] Overbooking Flights Air America has a policy of booking as many as 15 persons on an airplane that ca #12957
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[Solved] TV Viewer Surveys The CBS television show 60 Minutes has been successful for many years. That show r #12958
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[Solution] Author’s Slot Machine The author purchased a slot machine that is configured so that there is a 1/2 #12959
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[Solution] Suppose it is known that 10% of men have red-green color blindness (i.e. cannot distinguish between #12985
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[Solved] A study by the National Park Service revealed that 50 percent of vacationers going to the Rocky Moun #12989
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[Solved] One-fourth of the residents of the Beverly Hills Estates leave their garage doors open when they are #12990
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Solution: Professor John Miller has a pool of 15 multiple-choice questions regarding probability distributions #12991
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[Solution] A manufacturer of window frames knows from long experience that 5 percent of the production will hav #12992
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Solution: The Georgetown, South Carolina, Traffic Division reported 40 percent of the high-speed chases involv #12994
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[Solution] An article in the Wall Street Journal stated that 92 percent of the nation's top CEOs had cellular p #13011
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[Solved] The Springfield Kings, a professional basketball team, has won 12 of its last 20 games and is exp #13067
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[Solution] The Northside Rifle team has two markspersons, Dick and Sally. Dick hits a bull's-eye 99% of the #13069
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(Solved) If 10% of all disk drives produced on an assembly line are defective, what is the probability tha #13070
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[Solution] Patients arrive at the emergency room of Costa Valley Hospital at an average of 5 per day. The de #13073
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[Solution] A couple has three children. Find the probability of having: a) all boys b) exactly one boy c) #13092
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[Solved] How many three-digit numbers can be formed from the digits 1, 3, 5, 7, 9: a) if repetition is allow #13093
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(See Solution) The probability that a patient recovers from a delicate heart operation is .9. What is the probabili #13096
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[Solved] Let x-values follow a binomial distribution with n= 10 trials and probability of success p=.4. Find: #13097
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Solution: The Natural Science Club of Haploid High School consists of 12 math majors, 15 physics majors, and #13121
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[Solved] Let Y1 and Y2 denote the proportions of two different types of components in a sample from a mixture #13131
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Solution: Suppose that the random variables Y1 and Y2 have joint probability density function, f(y1, y2), give #13132
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[Solved] f(y1,y2)= 1, 0 ? y1 ? 2, 0 ? y2 ? 1, 2y2 ? y1, 0, elsewhere Is a valid joint probability densi #13133
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[Solved] The joint density function for Y1, the weight in tons of a bulk item stocked by a supplier, and Y2 #13134
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[Solved] A committee of three people is to be randomly selected from a group containing four Republicans, thr #13135
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Solution: A box contains four balls, numbered 1 through 4. One ball is selected at random from this box. Let: #13136
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(Solved) A nut company markets cans of deluxe mixed nuts containing almonds, cashews, and peanuts. Suppose th #13137
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[Solution] An editor has 8 manuscripts for mathematics and 5 for computer science books. If he is to select 5 m #13249
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(See Solution) There are four Collies, six German Shepherds, and three Huskies in the animal shelter. If a person s #13250
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[Solved] Five green apples and 7 red apples are in a bucket. Five apples are selected at random (using no rep #13252
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(See Solution) An experimental serum was injected into 500 guinea pigs. Initially, 150 of the guinea pigs had circu #13253
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[Solved] A TV remote has keys for channels 0 through 9. If you selected one key at random: a. What is the pr #13254
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[Solved] Calculate the following permutation: 8P 4 #13256
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[Solved] Calculate the following permutation: 12P7 #13257
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Solution: If a group of consists eight members, how many different arrangements of presidents and vice preside #13261
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[Solution] Find the number of different arrangements of the letters in the word PFEFFERNUESSE #13262
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