Q. 2. Calculate range and its co-efficient from the following data: Value: 20 28 32 25 15 10 36 40

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Q: The 2000 U.S. Census also asked for each person's age. Suppose that a sample of 40o households taken...

A: Solution-: We have following table: Class Freq (fi) 0-20 32 21-40 16 41-60 13 61-80 10 ...

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Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget...

A: Given that  μ=52 , ?= 8 X~Normal(μ=52 , ?= 8)

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

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A: According to Bartleby guildlines we have to solve first three subparts and rest can be reposted... W...

Q: Q. 8. Calculate co-efficient of correlation from the followine results: N= 5 Ex = 80 Ey = 130 E(x-5)...

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Q: Q4. Find the Pr( Not-A `OR' Not-B) Prob. Venn Diagram Incomplete Carroll diagram A B A Not-A 0.3 0.1...

A: Given, The completed Carroll diagram is:   A  Not A Total B 0.1 0.4 0.5 Not B 0.3 0.2 0.5 ...

Q: Which of the following pieces of information is used in calculating a correlation coefficient? Group...

A: Here when we calculate correlation coefficient then we need mean, standard deviation.

Q: (a) How many standard deviations above the mean did Sophia score on the Verbal Reasoning section? (...

A: X1=Verbal Reasoning section   X2=Quantitative Reasoning section X1~N( μ1=151 , ?1=9 ) μ1 =151 , ?1 =...

Q: A renovation of the gift shop at Orlando Amway Center has six activities (in hours). In the followin...

A: We know that the expected value, E(x)= ΣXi/n Activity Expected time A (11+14+19)/3 = 14.67 B ...

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: Coloulate the rank correlation coefficient for the ranks of 10 students assigned by two teachers :

A: Here  X = rank of teacher 1 Y= rank of teachers 2 Use spearman rank correlation coefficient formula 

Q: 8. The "time consumed on Facebook on a particular day" is what type of variable? A. qualitative C. d...

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Q: A box of donuts containing 7 maple bars, 2 chocolate donuts, and 3 custard filled donuts is sitting ...

A: Ans#-  Given a box of donuts containing  7 maple bars, 2 chocolate donuts and 3 custard donuts.     ...

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Q: Calculate weighted arithmatic mean from the following : Monthly Salary : 3700 3000 2200 1500 1050 St...

A: Given that, The formula for calculating the  value of weighted arithmetic mean is,

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A: As per Bartleby guideline expert have to answer first question only dear student please upload other...

Q: 3. Following is the distribution of marks in law obtained by 50 students: Marks (more than) No. of s...

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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 ...

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Q: Explain the difference between absolute and relative dispersion. If 20 is subtracted from every obse...

A: * SOLUTION :-  From the given information the answer is provided below.

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Q: Derive the equation of linear function for the following data b e method of least squares. X Y 5 10 ...

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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: What is the probability (in decimal) of choosing a number from 1 to 20 that is greater than 5 or eve...

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Q: In a certain class, 20 students do not like Spider-Man nor Dark Knight. In the same class, 74 studen...

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Q: If X is a Poisson variable such that P(X = 2) = 9P(X= 4) + 90P(X= 6), find the mean and variance of ...

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Q: A mail-order company business has six telephone lines. Let X denote the number of lines in use at a ...

A: Given data is x 0 1 2 3 4 5 6 P(x) 0.11 0.15 0.20 0.25 0.19 0.09 0.01  

Q: Situation 1. To find out the effectiveness of a Strategic Intervention Material, Mrs. Lunes conducte...

A: Given information: Student Pretest Post test 1 32 35 2 25 30 3 18 29 4 33 33 5 25 23 ...

Q: From the following information, find the standard deviation of x and y variable: Σχ= 235, Σχ?= 6750,...

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Q: Amend the following table and locate the median from amended table. Also measure the magnitude of th...

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Q: The fun size of a Snickers bar is supposed to weigh 20 grams. Because the penalty for selling candy ...

A: Given data: 19.6,19.9,20.5,21.5,20.6,20.6,20.3,19.7,19.5 n = 9  

Q: Suppose a coin has been tossed 20 times. Thệ position of heads (H) and tails (T) obtained in the fol...

A: A coin has been tossed 20 times Find the number of runs. HTHTHTHTHTHTHTHTHTHT

Q: Example 19-3. Evaluate (a) A" (ax" + bx"–1) (b) A10 (1 – ax) (1 – bx²) (1 – cx³) (1 – dx+)

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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: a survey of a group of​ men, the heights in the​ 20-29 age group were normally​ distributed, with a ...

A: We have given that.   X~N( μ , ?^2 )   μ =67.2 , ? =4.0   Z-score =( x - μ )/?   NOTE:- According to...

Q: 13. Determine the type of sampling used in the following scenario: A researcher has a list of names ...

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Q: Property 3. (Mean of the composite series ). If xi (i = 1, 2,..., k ) are the means of k component s...

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Q: Derive that the lower bound of one-sided confidence interval is L = 0 – CaSE[@].

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Q: The correlation coefficient is a measure of _______. Group of answer choices prediction mean differe...

A: In this case, we need to find the correct option for the given statement.

Q: The Shareholders Research Centre of America has conducted recently a research-study on price behavio...

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Q: 1.A bag of candy was opened and the number of pieces was counted. The results are shown in the table...

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Q: Two independent samples have 28 and 19 pairs of observations with correlation co efficients 0.55 and...

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

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Q: From the following infórmation, ble : Σχ= 235, Σy= 250 2 Ey = 6840 6750

A: Given: ∑x=235∑x2=6750∑y=250∑y2=6840n=10

Q: Four experts rank the five applicants in an interview as follows. APPLICANTS Experts 1 2 4 5 A 1 2 4...

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Q: Let Y,...,Y, be a random sample from a distribution with the probability density function f(y) = B(1...

A: Given that Y1, . . . ,Yn be a random sample from a distribution with the probability density functio...