Consider the discrete random variable X given in the table below. Calculate the mean, variance, and standard deviation of X. 1 7 18 19 P(X) 0.12 0.14 0.67 0.07 O = What is the expected value of X?

Q: Determine the probability that someone who is using the lie detector is innocent if the lie detector...

A: Here use tree diagram and Bayes rule 

Q: Suppose the following set of random numbers is being used to simulate the event of a basketball play...

A: The option is B

Q: The odds against a student X solving a Mathematics problem are 8:6 and the odds in favour of student...

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Q: closet contains eight pairs of shoes. You blindly pull out eight shoes. What is the probability that...

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Q: Consider random variables X and Y with the joint PDF below find E[X|Y = 0] and E[Y|X = -1]

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Q: In how many ways can 12 jury members be seated in a court?  b) What is the probability that Ashley w...

A: Here use different method for possible no of arrangement 

Q: 4) Out of all the business students, 40% specialize in accounting, 15% fail the business math course...

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Q: a) Determine the probability that they like neither of the food b) Determine the probability that so...

A: note: as per policy i have calculated 3 subparts  HERE DEFINE events and draw venn diagram B = perso...

Q: Given X: {a = 3,6= 12, c = 25, d = 34) and Y: (d = 45, e = 52, f = 109). If the below arrow diagram ...

A: Given that  X :{a=3, b=12, c=25, d=34}  Y: {d=45 , e=52  , f=100} We have to find the pre image of f...

Q: in a class of 25 students, 11 students participate in extra curricular activities. suppose 3 student...

A: In a class of 25 students, 11 students participate in extra curricular activities. suppose 3 student...

Q: Let p P(Y = 1 |X). Consider the following generalized linear model for binary data: log(-log(p)) = 1...

A: p = P(Y=1|X) Given, log(-log(p)) = 1-X So,  -log(p) = e1-X⇒log(p) = -e1-X⇒p = e-e1-X⇒P(Y=1|X) = e-e1...

Q: Between 11 p.m. and midnight on Thursday night, Mystery Pizza gets an average of 5.6 telephone order...

A: Between 11 p.m. and midnight on Thursday night, Mystery Pizza gets an average of 5.6 telephone order...

Q: Companies use employee training for various reasons, including employee loyalty, certification, qual...

A: * ANSWER :-  As per guidelines I answered 3 sub parts only.  Please repost remaining parts seperatel...

Q: If only five-digit phone numbers are possible, what is the probability of having a phone number that...

A: Introduction: It is required to find the probability that a five-digit phone number ends in 5.

Q: child diagnosed with neuroblastoma. What are the chances that the child undergoes surgery and is cur...

A: .here given, According to the Children's Oncology Group Research Data Center at the University of Fl...

Q: An urn contains 5 blue balls, 6 red balls, and 7 black balls. Two balls are randomly drawn without r...

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Q: Do not round intermediate computations, and round your answer to three decimal places.

A: Given : Customer arrivals at the shop average 1.8 a minute i.e λ = 1.8 

Q: At a factory that produces pistons for cars, Machine 1 produced 792 satisfactory pistons and 198 uns...

A: General formula of probability is ,  Probability =Number of favorable outcomes Total outcomes

Q: who is more likely to attend both activities?

A: here use concept of independent event if A and B independent events then p(A and B ) = p(A).p(B)  

Q: A box has 19 candies in it: 2 are peppermint, 7 are caramel, and 10 are taffy. (Each candy falls int...

A: It is given that Total candies = 19 Number of peppermint candies = 2 Number of caramel candies = 7 N...

Q: I randomly pick two integers from 1 to n with replacement where n is a positive integer. (a) What is...

A: Given We Randomly pick two integers from 1 to n with replacement where n is a positive integer.

Q: Use the Table of Standard Normal distribution to determine corresponding probabilities of the follow...

A: Given:  z be the standard normal variate then to find probability  1):P(Z < -1.45) 2. P(0.5 <...

Q: Evaluate the following 1. 51 10 2. 712 3. sPs 4. How many different ways can 8 athletes win the gold...

A: List of formulae :  Factorial :  n! = n×(n-1)×(n-2)×(n-3)× .......... ×3×2×1 Permutation :  nPr = n!...

Q: What are the zeros of the functio f(x) = x² + 2x – 24 ? %3D A. -8 and 3 B. -6 and 4 C. . 4 and 6 D. ...

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Q: How many different license plates can be generated

A: Here total capital letters are 26 And total available number 0,1,....9 that is total 10 Here use com...

Q: is a normally distributed random variable with a mean of 60 and a standard deviation of 8. Find the ...

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Q: 3. Let T be a random variable giving the number of heads in three tosses of a coin. List the element...

A: According to Bartleby guildlines we have to solve first question and rest can be reposted.... Given ...

Q: Taehyung is joining the same flight as Namjoon and Yoongi. In his drawer, there are 4 identical pair...

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Q: Find what is being asked in the given problems. 1. In a given normal distribution, the sample mean i...

A: According to Bartleby guildlines we have to solve first question and rest can be reposted.... Given ...

Q: a) What is a number of different words from all letters of word MATHEMATICS can be spelled? b) What...

A: Given the MATHEMATICS. Using this word we have to solve the indicated problems. 

Q: Assume that a randomly selected subject is given a bone density test Those test scores are normally ...

A: Required probability is P(Z>0)

Q: 7. Suppose that you have the following set of numbers: 8, 2, 5, 3, 6, 7, 4, 5. From the distribution...

A: Numbers: 8,2,5,3,6,7,4,5 Mean = Σx/n = (8+2+5+3+6+7+4+5)/8 =5 Data in ascending order, 2,3,4,5,5,6,7...

Q: c) P(2 1)

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Q: There are three coins in a box. One is a two-headed coin, another is a fair coin, and the third is a...

A: 3. From the given information, there are 3 coins in a box. One is a two-headed coin, another is a fa...

Q: 1. The positivity rate in a certain group is 3.5%. Determine the probability that a batch will test ...

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Q: certain stock price has been observed to follow a pattern. If the stock price goes up one day, there...

A: 1. One of the most prominent causes of expatriate is culture shock. This occurs when a candidate is ...

Q: A coin will be tossed twice. Let E be the event "the first toss shows heads" and F the event "the se...

A: GivenA coin is tossed twiceThen the outcomes are(H,H)(H,T)(T,H)(T,T)Let E be the event "the first to...

Q: How many different 4 card hands can be dealt from a deck of 52 cards? The order of the cards does no...

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Q: Identify the level of measurement. (Possible values are listed after the measure.) Whether or not th...

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Q: -What is the expected gain from this game?

A: here total 52 cards in deck total face cards = 12( J,Q,K of each suit) total ace = 4   probability =...

Q: A committee consisting of 4 faculty members and 5 students is to be formed. Every committee position...

A: It is given that Number of faculty members = 8 Number of students = 13 

Q: Calculate using the normal approximation the probability that exatcle five people will have type O b...

A: Given : There are 50% of the population that have type O blood  and 16 people were selected.

Q: Assume that human body temperatures are normally distributed with a mean of 98.23°F and a standard d...

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Q: Academic Dishonesty. A study of academic dishonesty among college students used a two-stage sampling...

A: Given that, 30 colleges or universities were selected to study academic dishonesty among college stu...

Q: An urn has r red and w white balls that are randomly removed one at a time. Let Rị be the event that...

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Q: SUMMATIVE ASSESSMENT # 2 Municipality Mayor in Tanza introduce the candidates for Most Outstanding B...

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Q: A family decides to have children until it has three children of the same gender. Assuming P(B) = P(...

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Q: The table below shows the probability distribution of a random variable Y. Y P(Y) 11 0.7 12 0.1 13 0...

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Q: 5. The probability that a train leaves on time is 0.9. The probability that it leaves on time and ar...

A:

Q: Permutations: There are 22 players on a hockey team. 2 are goalies. a) What is the number of ways ...

A: