Suppose the university has designed a e-mail spam filter that attempts to identify by looking for commonly occurring phrases in spam. E-mail analysis has shown that 80% of email is spam. Suppose that 10% of the spam email contain the phrase “Large inheritance”, whereas this phrase is only used in 1% of non-spam emails. Suppose a new email is received with the phrase ”Large inheritance”, what is the probability that it is spam?

Q: Suppose that after 10 years of service, 36% of computers have problems with motherboards (MB), 42%…

A: After 10 years service ,  36% of computers have problems with (MB)  P(MB) = 36% = 36/100 = 0.36  42%…

Q: The 118 passenger list for a particular flight includes five terrorists. What is the probability…

A: Here, n = 20. Consider X denotes the passenger is terrorists. The probability of success is, p=5118…

Q: It is found that 10% of watches produced at a particular factory are defective.  If 14 watches made…

A:

Q: Imagine that 60 passengers on a cruise ship might be carrying a rare virus, and government health…

A:

Q: A company that has 150 employees chooses a committee of 11 to represent employee retirement issues.…

A: a) Given that there are 150 employees. We have to select a group of 11 employees.  Since it is a…

Q: XYZ bank classifies borrowers as "high risk" or "low risk," and 16% of its loans are made to those…

A: Correct answer is =((1-0.4)*0.05)/(1-0.16) = 0.03/0.84

Q: 12) United Blood Services is a blood bank that serves more than 500 hospitals in 18 states.…

A: Probability of an event (E), i.e P(E)=Number of favorable cases for event ETotal possible cases We…

Q: 1) Describe the problem using a system of difference equations. 2) Assume today is sunny, compute…

A:

Q: When two purple flowers (RB) are crossed, there are four equally likely possible outcomes for the…

A: Number of possible outcomes, n(S) = 4

Q: What is the probability of randomly selecting all seniors to form a committee of three from a pool…

A: we have to find given probability.

Q: Suppose you have historical data that says the probability a stock experiences a large price…

A: Introduction: Denote L as the event that a randomly selected stock experiences a large movement, or…

Q: 5. A traveler wanted to avoid detection at customs. He placed 6 narcotic tablets together with 9…

A:

Q: It is found that 9​% of watches produced at a particular factory are defective. If 21 watches made…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: Could the number “0000” appear in a table of random digits? If so, how likely is this?

A: The random numbers consist of 4-digit numbers from 0000 to 9999. The four-digit numbers lie…

Q: A lot contains 80 items without defects and 20 with defects. 2 articles are chosen at random without…

A:

Q: or its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listened to music…

A: Selecting 10 teenagers randomly and asking that whether they use Pandora Media Inc.’s online service…

Q: A university has found there is a 3% probability that an application contains an error. Assume…

A: Given: A university has found there is a 3% probability that an application contains an error.…

Q: In a study of 295,245 cell phone users, it was found that 48 developed cancer of the brain or…

A: The value of probability P (X ≤ 48) is obtained below:From the given information, let the random…

Q: A certain typing agency employs two typists. The average number of errors per article is 4.44.4 when…

A:

Q: Suppose that a particular surveillance system has a 99.9% chance of correctly identifying someone…

A: Given Information: A surveillance system has a 99.9% chance of correctly identifying someone who is…

Q: he probability of drawing a black face card?

A: Given that  An experiment consists of drawing 1 card from a standard 52 card deck .   We know that…

Q: When playing the card game Blackjack, multiple decks are used and reshuffled often so that the…

A: Here, n=20 and p=0.045. The pmf of binomial distribution is given below:

Q: was found that 18 developed cancer of the brain or nervous system Assuming that cell phones have no…

A: *Answer:

Q: A typist makes an average of 2.6 typos every 10 pages. What is the probability that the typist makes…

A: Let X denote the number typos in every 10 pages and it follows Poisson distribution with The…

Q: traveler wanted to avoid detection at customs. He placed 5 narcotic tablets together with 9 vitamin…

A:

Q: If a six member ethics committee is chosen at random from 20 state representatives of which 1 are…

A: It is given that No. of Republicans = 12No. of Democrats = 8Total members = 20

Q: You are working for a job search engine. Suppose you found out that the word 'python' occurs in 175…

A: Introduction: Denote A as the event that a randomly selected new jobpost is IT-related, so that Aꞌ…

Q: According to the latest studies,  20% of amatour drivers has had an accident in 1 last year.…

A: basic probability

Q: A production engineer found that a particular manufacturing process causes defects in 4 of…

A: It is given that, A production engineer found that a particular manufacturing process causes defects…

Q: what is the probability that when taking a sample without replacement of size 28, 12 students are…

A: HERE GIVEN, 47 students are taking the test from room cs103 located in the health science building.…

Q: A box contains 4 left-handed gloves and 6 right-handed gloves.  If we randomly select 4 gloves from…

A: The answer is 3/7.

Q: what is the probability that the sample will contain exactly two universities in British Columbia?

A: Suppose universities are being selected randomly from this list with replacement.  Six universities…

Q: If 12 out of 1502 people have a certain genetic defect, what is the probability of selecting three…

A:

Q: i. What is the probability that the second unreliable computer will be found on the fifth computer?…

A: It was found that eight percent of the computers produced by Mala Investment are unreliable. If the…

Q: Suppose that when a machine is functioning well, 92% of the items are non defective. Assume that a…

A: Given, Probability that the items are non-defective is q=0.92 Therefore, the probability that the…

Q: It is found that 8% of watches produced at a particular factory are defective.  If 22 watches made…

A: Given that the probability of defective is 8%=0.08 and there are 22 watches. Let us consider X as…

Q: You wish to play a three-number lottery with your favorite data 8, 2 and 5.  After a number is…

A: Given dataThere are 3 numbersRepetition is allowedWe are drawing a single number with replacement,…

Q: Suppose that a certain tech company sources their chips from three different factories, F1, F2 and…

A:

Q: A bin contains 3 different types of disposable flashlights. The probability that a type A flashlight…

A: The probability that a type A flashlight would give over 100 hours of use is 0.7, type B is 0.4 and…

Q: A bag of 100 tulips bulbs purchased from a nursery contains 40 read tulip bulbs, 35 yellow tulip…

A: The objective of this question is to find the probability of selecting a red tulip bulb from a bag…