Calculate weighted arithmatic mean from the following: Monthly Salary: 3700 3000 2200 1500 1050 Strength of employees : 10 10 15 20 25

Q: An analyst develops the following table of joint probabilities relating to the size of firm (measure...

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Q: Assume that the proportion of voters who prefer Candidate A is p=0.247p=0.247.  Organization D condu...

A: Given :  p = 0.247 n = 5 Let X represent the number of voters polled who prefer Candidate A.    

Q: Initially there were 9 workers, all being paid a uniform wage. Later a 10th worker is added whose wa...

A: Given: 9 workers have same wage. New person has wage rate which is $20 less.

Q: Time taken by the crew, of a company, to construct a small bridge is a normal variate with mean 400 ...

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Q: Sources of Energy Use A breakdown of the sources of energy used in a country is shown below. Natural...

A: Given : Natural gas = 27%Coal = 25%Nuclear = 9%Hydropower = 2%Oil = 35%Other = 2%

Q: Q5. Find the conditional probability Pr(B|A) Prob. Venn Diagram Incomplete Carroll diagram A 0.3 0.1...

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Q: It is known that the mean diameters of rivets produced by two firms A and B are practically the same...

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Q: A small-town mechanic says that 8% his customers come in for an oil change. When  1000 samples were ...

A: It is given that a small-town mechanic says that 8% of his customers come in for an oil change.

Q: Q. 6. Marks secured by 35 students of M.Com. Previous in a test are given below: 55, 45, 60, 65, 70,...

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Q: For the following data obtain (i) mean, (ii) median, (iii) mean deviation from median, and (iv) the ...

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Q: A particular forecasting model was used to forecast a six-month period. Here are the forecasts and a...

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Q: The proportion of all customers at Pizza Hut who eat on-site is 75 percent. In a sample of 100 patro...

A: Given that  n=100 , p=25%=0.25  , q=1-p=1-0.25=0.75 σp=√(p(1-p)/n)=√((0.25*0.75)/100) p0~Normal(μp=0...

Q: True or false, more than twice as many E1-rated games were sold as T-rated games?

A: Relative frequency corresponding to E rated games is 0.35 , whereas the relative frequency correspon...

Q: The average wages paid to all workers in a factory was $. 5000. The average wages paid to male and f...

A: Given that  Average of all workers=AA=5000 Average of male workers=AM=5200 Average of female workers...

Q: Directions: Analyze the problem below by providing a comprehensive answer from the given question. W...

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Q: A competency test is modified so that the proportion of test-takers that pass is more than 75%. A si...

A: Sample proportion is given by   

Q: A car plant produces about one hundred cars per day independently of any other day with probabilitie...

A: A Markov chain is a process X t : t ≥ 0 that satisfies the Markov's property. Here, X t is the state...

Q: Consider again a random sample X1,..., Xn from the population distribution with density f (x; 0) = 0...

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Q: A charitable organisation decided to give old age pensions to people over sixty years of age. The sc...

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Q: t was raining heavily and after the rain has subsided, the road was still wet with small pools of wa...

A: An accidental event is defined as the first sign that can deviate from a normal situation that can l...

Q: The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-sh...

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Q: ta) Find the mode of the following distribution: 7. 4. 3. 5. 6. 3. 3. 2, 4, 3. 4, 3, 3. 4. 4, 2. 3 (...

A: Given data is 7,4,3,5,6,3,3,2,4,3,4,3,3,4,4,2,3 We have  to find Mode of the given data set : The va...

Q: 3. Which among the values is approximately equal to P(Z > -1.20)? a.0.8849 b. 0.7698 c. 0.1151 d. 0....

A: We have given that,  Z from normal distribution then we will find the probably P( Z > -1.20 ) = ?...

Q: taking a statistics class and a biology class. Suppose her probabilities of getting A’s are: P(grad...

A: Given: P(A in statistics) = 0.709 P(A in biology) = 0.766 P(A in statistics and a grade of A in biol...

Q: Contract Rene • The percentage of renewed contracts was 60% for Year 1 and 72% for Year 2. • The ren...

A: Given that - The percentage of renewed contracts was 60% for Year 1 and 72% for Year 2 The renewed c...

Q: frequency olistribution Far th determine : Contruct of Follawing data and O midpoint ( class mark). ...

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...

Q: 12. This non probability sampling is a variation of stratified sampling, wherein samples are collect...

A: Ans#12- This non probability sampling is a variation of stratified sampling, wherein samples are col...

Q: (c) What is the probability that none of the five have written an editorial letter while under the i...

A: Given that  n=5 , p=32%=0.32 , q=1-p=2-0.32=0.68 X~Binomial(n=5,p=0.32) X=Number of written an edito...

Q: oughly, speaking, we can use probability density functions to model the likelihood of an ent occurri...

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Q: Q. 4. Fit a straight line from the following data Years : 1989 1990 1991 1992 Sales (1000) : 12 15 1...

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Q: For the following data: X Y 3 8 5 8 2 6 2 3 4 6 1 4 4 7   Find the regression equation for predictin...

A: We have given : Data for x&y We have to calculate regression equation. 

Q: Contrast applied research and basic research.

A: Let AR denote applied research. Let BR denote basic research.  

Q: 4. Mary Pineda ran against Bernie Leoncio for congreesman. In one precent, one of the two voting mac...

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Q: Multiply each of the original X values by 2: Each X Multiplied by 2 X Y 8 5 12 5 6 2 18...

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Q: Transportation is a necessity in many business organizations (goods and materials are transported fr...

A: 1)One of the problems the organizations face is the transportation problem. It originally means the ...

Q: Find the present value at 8% simple interest of a debt RM4 000 due in 9 months. O RM3774.48 RM3774.5...

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Q: You have the blow metrics for a model: TP = 40, TN = 45, FP = 7, FN = 8. The cost associated with mo...

A: The given metrics for the model are shown belowTPFPFNTN=407845 The cost associated with the model ar...

Q: From the following information, find the standard deviation of x and y variable : Σχ= 235, Σχ26750, ...

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Q: The average marks obtained in the annual examination is 65 with the S.D. of 10. The top 5% of the st...

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Q: Find the class intervals if the arithmetic mean of the following distribution is 33 and assumed mean...

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Q: A research report states t(18)=+3.00, p<. 05. For this test, r2 =. 33

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Q: In a group of 10 workers, the wage of the lowest paid worker is $ 225 less than the average wage of ...

A: Given : N=10 Lowest paid worker = 225 We have to tell standard deviation of wages = 7.53

Q: f(x, y) o, otherwise. (a) Find c. (b) Find P(Y >X) (c) Find marginal pdf's of X and of Y (d) Are X a...

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Q: show that the performance of male college students in Mathematics in terms of final grade is 5% high...

A: Given that  Level of significance=5%=0.05 Find null and alternate hypothesis 

Q: Calculate the coefficient of correlation between x and y. 4 6 8. 5 9 13 17

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Q: a private school students can choose only of French, Spanish or Music as their  Elective. In a group...

A: Given that  In a group of students, the number of males and females studying Spanish, French or Musi...

Q: earson’s product–moment correlation coefficient is represented by the following letter: Group of ans...

A: Question: Pearson’s product-moment correlation coefficient is represented by which letter? Answer: I...

Q: racteristic havin tance origin? A. nominal C. interval B. ordinal D. ratio

A: Level of measurement having order and distance but no unique origin Choose the correct option

Q: Sewage and Industrial pollutants dumped into a body of water can reduce the dissolved oxygen concent...

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Q: Topic major measures of Central value A machinery depreciated by 40% in the first year, 25 per cent ...

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