In a multiple choice test, each question is to be answered by selecting 1 out 4 choices, of which only l is right. If there are 10 questions on the test, what is the probability of getting 6 correct answers of pure guesswork? Select one: O a. 0.0176 O b. 0.0184 O c. 0.0195 O d. 0.0162

Q: The probability of getting sick is 0.05-0.03x and the expenditure is 200 if being sick. Moreover, he...

A: (i) pcrgdpt=3.344-1.891∆unemt                 (0.163) (0.182) n=46 , R2=0.710 compare to hypothesis ...

Q: 12. A company has a possible project and has identified the two major areas of risk as being the in...

A: Probability : The probability of an event is defined as the ratio of the number of favorable cases t...

Q: (a) In a 12-horse race, how many exactas are possible? (b) In a 12-horse race, how many trifectas ar...

A: Here as per policy i have calculated first main question Here use combination

Q: The variance of a discrete probability distribution can be calculated using the formula: H=Ex.p(x) T...

A: We know that  E(x)= ∑X.p(x)E(x2 ) = ∑X2.p(x)Variance =?2 = E(x2 ) - [E(x)]2 Where μ= E(x)

Q: The following table shows the weight of students in a class. Student number 01 02 03 04 05 06 07 08 ...

A: (i). Using the table, starting from row 2 and column 1, we select student number 0,8,8,5,1 ( student...

Q: time. (a) Suppose a mechanic begins to diagnose the problem by checking the spark plugs first and fi...

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Q: Let G be a simple graph with 15 vertices and 4 connected components. Prove that G has at least one c...

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Q: James and Harry play baseball and each of them can score one goal with the probabilities of 0.4 and ...

A: James and Harry play baseball and each of them can score one goal with the probabilitiesof 0.4 and 0...

Q: Example An insurance salesman sells policies to 5 men all of identical age and good health. Accordin...

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Q: Probability P(X) 0.06 Number of Copies X 0.14 2 0.16 3. 0.14 4. 0.12 0.10 0.08 7. 0.07 8. 0.06 6. 0....

A: Solution: Let, X=Number of copies and P(X) =Probability We have given following table: X P(X) 0...

Q: Estimate with 92% confidence the mean number of rounds played per year by physicians, assuming that ...

A: It is given that Sample size n = 12 Population SD = 8 Sample mean = (5+44+18+4+......+13+48)/12 = 23...

Q: (a) Calculate Tom's point estimate. (b) Given that the estimated standard er- ror of (p1 + p2)/2 is ...

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Q: Of all airline flight requests received by a certain discount ticket broker, 60% are for domestic tr...

A: Let p be the probability that the request is for domestic flight. Given that p = 0.60 Also, X = numb...

Q: Question 11 Logistic regression Select an answer and submit. For keyboard navigation, use the up/dow...

A: The answer of Question no. 11 is : The logistic regression is a type of regression where the predict...

Q: Assume that a vending machine dispenses coffee in amounts that vary uniformly between 7.4 and 8.2 ou...

A: Here, the two parameters of uniform distribution are: a = 7.4 and b = 8.2. The probability density f...

Q: Task of the day: In a city three daily newspapers X, Y, Z are published, 40% of the people of the ci...

A: Solution:

Q: bemade white? At.colons orts leactv ance each code

A:   How many different 4-color code stripes can be made on a sports car if each code consists of the c...

Q: The table summarizes results from 988 pedestrian deaths that were caused by automobile accidents. ...

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Q: A credit card company monitors cardholder transaction habits to detect any unusualactivity Suppase t...

A:

Q: Suppose we want to choose 5 objects, without replacement, from 18 distinct objects. a) If the order...

A: Given,Total no.of distinct objects=18

Q: The amount of potassium in food varies, but bananas are often associated with high potassium, with a...

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Q: d.ore than the expected number of vaccinated residents is found in the sample?

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Q: Mike and Kevin play football and each of them can score one goal with the probabilities of 0.9 and 0...

A:

Q: In a survey of 500 students in a university, 200 are enrolled in Psych 101, 180 are enrolled in Span...

A: Given that, In a survey of 500 students in a university, 200 are enrolled in Psych 101, 180 are enro...

Q: D. There are instances where system error occurs which greatly affects the mechanics of the game. In...

A: Given: It's given that 1 system error occurs in every 500 games

Q: Rachel is playing a game of chance in which she tosses a dart into a rotating dartboard with 8 equal...

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Q: Assume that 10% of people are left-handed. If we select 10 people at random, find the probability of...

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Q: In an elimination tournament the teams are arranged in opponent pairs for the first round, and the w...

A: Since all outcomes are equally likely, there is 50% chance that North Carolina will win against Cent...

Q: r Repair: The manager at Arango Automotive has found the probability that a car brought into the sho...

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Q: lim - 4 Evaluate x → 2 x + 2 V3x - 2

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Q: An average of 2.5 visitors come to the barber’s during a day. Assume that the number of visitors is ...

A: GivenAn average 2.5 visitors come to the barber's during a dayλ=2.5 Let "x" be the no.of visitors pe...

Q: 4. Four married couples are seated at a round table. Determine the possible arrangements if they can...

A: Given,4 married couples it means total 8 peoples.

Q: Assume that the events A and B are independent with P(A) = .30 and P(B) = 40. The probability that b...

A: We have given that,  P(A) = 0.30 and P(B) = 0.40 Then,  We will find the probability that  both even...

Q: Exercise 3. The life of an electronic component has the exponential distri- bution with parameter = ...

A: Given that the life of an electronic component has the exponential distribution with parameter λ=0.0...

Q: Changes in airport procedures require considerable planning. Arrival rates of aircraft are important...

A:

Q: Given the Venn diagram, shade the corresponding regions.

A: Venn diagram are used to pictorial representation of different groups. It used for easy understand o...

Q: Long Questions 13. (а) Jisoo is considering ihe investment opportunities of a stock. After detail an...

A: Given, Return(%) -9 -5 3 4 10 Probability  0.05 0.2 0.1 X 0.25

Q: A box contains ten cards labeled J, K, L, M, N, O, P, Q, R, and S. One card will be randomly chosen....

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Q: Can you proof the following. P( a1 < X < a1 , b1 < Y < b2 ) =  F(a1,b1) + F(a2,b2) - F(a1,b2) - F(a...

A: Let F be the distribution function of a two dimensional random variable (X,Y). Then,if a1&lt;a2 and ...

Q: 84. (a) If for two events, A and B 1 Then find P(B A). 4 P(B) = and P(A/B) = (b) If P(A) 0.4, P(A U ...

A: The probability of an event is the ratio of number of favourable outcomes of the event to the total ...

Q: A certain disease has an incidence rate of 0.2%. If the false negative rate is 4% and the false posi...

A:

Q: Three students X, Y and Z, each shoot at a target. The probability of hitting the 1 5 target by X, Y...

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Q: 3(6x- x) Determine the mean and variance of the random variable for f(x) = 0<x< 6. 108 Round your an...

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Q: A particular professor never dismisses class early. Let x denote the amount of time past the class e...

A: We have given that  Probability distribution function. f(x)= 1/(b - a) , a &lt; x &lt; b  Where a= 0...

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 70 and a s...

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Q: A biased die is thrown thirty times and the number sixes seen is eight. If the die is thrown a furth...

A: List of formulae : Expected value : E(X) = np  Variance : Var(X) = np(1-p)   

Q: B. Compute the following probabilities using the standard normal curve. Construct a curve then shade...

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Q: Suppose the number of motor vehicle fatalities in a city during a week is poisson distributed with a...

A: Given,A random variable X~Poisson(λ=8)P(X=x)=e-8 8xx!  ;    x≥0

Q: . Illustrates the permutations of 1, 2, and 3? a.) 123, 132, 121, 231, 213, 312 b.) 123, 132, 231, 2...

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST 3 PARTS

Q: There are two groups of subjects one of which consists of 5 science subjects and 3 engineering subje...

A: Here,   P(Engineering |Group 1)=3/8 P(Group 1) =2/6 P(Engineering |Group 2)=5/8 P(Group 2) =4/6