Q2. In some factory we have the following statistics of defects on doors over a a veek. Ie the random variable the counts defects. Frequency 73 20 0. 16 15 2. 3. Find the expected value E(7) in that district.

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A: Formula :

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A: The mean is 28 and the standard deviation is 4.

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A: Given : Proportion of  flights of BlueSky arriving on time (q) = 0.80 So , the proportion of flights...

Q: Solve the following. Show your complete solution. And Sketch the graph In a job fair, 3000 applicant...

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Q: Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000...

A: Given Probability Distribution is Defect(x) 0 1 2 3 4 5 Probabiliy P(X=x) 0.264 0.303 0.243 0...

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A: 1) The z-scores are -0.25 and 1.

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A: We have given that Let X 1 ,...,X n be a random sample from a population with probability density fu...

Q: 10. In two large populations there are 30% and 25% respectively of fair haired people. Is This diffe...

A: Given that  For first population  p1=30%=0.30 Sample size n1=1200 For second population  p2=25%=0.25...

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A:

Q: A Moving to the next question prevents changes to this answer. Question 5 How many ways can a judge ...

A: We use formula.  By using  permutation  rule  nPr =  n! / (n-r) Where n= total number of cases And r...

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A: Given:

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A: Here make joint probability distribution table from x and y value using respective probability  Tota...

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Q: and 12.31 respectively. Is there sufficient evidence, at the 5% level, that the length of life of it...

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A: Note: "Since you have posted a question with multiple sub -parts, we will solve first three sub part...

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A: Solution

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Q: The following data has mid term marks and end term marks of 9 students. Maximum marks for both mid ...

A: Given: Students Mid term marks End term marks 1 67 55 2 59 42 3 73 80 4 63 83 5 89 76 ...

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A:

Q: 10. In two large populations there are 30% and 25% respectively of fair haired people. Is This diffe...

A:

Q: Based on the data shown below, calculate the regression line (each value to two decimal places) y =...

A: Given that X Y 3 18 4 19.48 5 19.26 6 21.14 7 19.82 8 19.1 9 18.28 10 19.16 11 ...

Q: evaluate this (combination topic) P(10,2) / C(10,2)

A: We know that P(n, r) = n!/(n - r)! And  C(n, r) = n!/(r! × (n - r)!)

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A: Given that p = 0.20, n = 100, p(x<=10) = ?

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Q: In two towns A and B, the following information was supplied by an investigator: Total population (i...

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Q: Potatoes. A high-quality product is one that is consistent and has very little variability in its ch...

A: Given data: 7.8,7.9,8.2,7.3,6.7,7.9,7.9,7.9,7.6,7.8,7.0,4.7,7.6,6.3,4.7,4.7,4.7,6.3,6.0,5.3,4.3,7.9,...

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A: Solution

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Q: Alice, Brit, and Cade each shoot an arrow at the same target. Alice has probability 0.7 of hitting t...

A: @solution:::  

Q: linear regression model that represents enrollment at "University of the Wakanda(UW)": E left parent...

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Q: Example 4.10 Let X be a continuous random variable with PDF fx(x) for all a E R and let Y = X². Find...

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Q: In a tennis match, unforced errors are those types of mistakes that are supposedly not forced by goo...

A: In a tennis match, unforced errors are those types of mistakes that are supposedly not forced by goo...

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Q: Answer the questions using complete sentences. a. What is an influential point? How should influenti...

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Q: Problem 2 Let X be a continuous random variable with PDF given by fx(=) = e, 1 for all a e R. If Y =...

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Q: 2. A random number generator produces sequences of independent digits, each of which is as likely to...

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Q: 7. Which group (i) or (ii) is more skewed ? (i) Mean = 22; Median – 24; s.d. = 10 (ii) Mean = 22; Me...

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Q: The proper operation of typical home appliances requires voltage levels that do not vary much. Liste...

A: Given that Mean =  119.99; sample standard deviation = 0.207, alpha=0.01 Construct a 99% confidence ...

Q: Before an increase in excise duty on tea, 400 people out of a sample of 500 persons were found to be...

A: Solution: Given information: n1= 500  Sample size of people before increase in excise dutyn2=600 Sam...

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A: Definitions: In Regression terminology,  Dependent (Response) variable: The variable being predicte...

Q: _7. Age (in years) of students 8. Ice cream flavor preference Years of important historical events 1...

A: here we know that  1- Age comes under interval scale because we can measure age under any specific i...

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Q: Normal Random Variable) Suppose that X1 is a N(3,15) r.v., and X2 is a N(10,6) r.v., independent fro...

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Q: It is commonly believed that the mean body temperature of a healthy adult is 98.6° F. You are not en...

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Q: QUESTION 8 Inside a black bag there are 10 balls numbered 0 - 9. The experiment is to pull out a bal...

A: Introduction: It is required to calculate the number of possible 6-digit numbers.