1.2. Let X and Y be independent standard normal random variables. Determine the pdf of W = X² + y². Find the mean and the variance of U = =W.

Q: Exercise: Suppose X₁,..., Xn are Find UMVUE for λ. 1 independen

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Q: Question (2): let x-B (10,0.1) Find p(x≤9) (1 .mathematical expectation and standard deviation (2

A: Solution-: Q.2 Ans: Given: X→B(n=10,p=0.1) We want to find, (a) P(X≤9)=? (b) Mathematical…

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A: *SOLUTION :-  Given that ,

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Q: (c) The table shows the frequency distribution of marks obtained by 50 students in a test. Marks…

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Q: An Independent consumer group published its finding that the lifetimes of electric bulbs…

A: We have given the following information about the hypothesis  Mean = 600 Standard deviation =120

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A: Given problem is normal distribution. Let, X : Scores on a aptitude test Mean=μ=480 Standard…

Q: Suppose that \(P(z<a)=0.85\). What is the value of \(a\)? NOTE: a. You are advised to draw the…

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Q: What is the probability a certain tire of this brand will last less than 53,400 miles? What is the…

A: Given Mean=60000 Standard deviations=1700

Q: Independent Activity 1: COMPLETE MY LIST The COVID-19 pandemic tested Filipino's resourcefulness and…

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Q: Below are monthly rents paid by 30 students who live off campus. 730 730 730 930 700 570 690 1,030…

A: The given data as follows, 730 730 730 930 700 570 690 1030 740 620 720…

Q: QUESTION 3 A manager wishes to simulate 10 days of operation of an inventory system. The beginning…

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Q: A. State the inferences on the following problems 1. The Commission on Education conducts salary…

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Q: Use the ALEKS calculator to solve the following problems. (a) Consider a t distribution with 9…

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

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Q: The following contingency table summarizes the drug test results for 422 test-takers: Positive…

A: Introduction: We need to first obtain the row totals, column totals, and grand total from the table.

Q: 10.- The percentages of osteopathic doctors who are women are given in the table for various years.…

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A: Suppose the variance of sales of store A (1st population) is σ12 and the variance of sales of store…

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Q: A dietition wanted to test three different diets to these diets is the same. She randomly selected…

A: By applying the ANOVA test for a single factor,   a) The Null and alternative hypothesis: Ho :  µ1 =…

Q: Number of square feet 1,727 1,217 1,070 Listing price $183,062 $129,002 $113,420

A: Direct or indirect variation are linear functions.

Q: Paul's Pretzel company sells bags of pretzels that have a mean weight of 4.2 ounces and a standard…

A: Given,mean(μ)=4.2standard deviation(σ)=0.15

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Q: If your credit card calculates interest based on 17.45% APR, compounded monthly: (a) What are your…

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Q: 1. Jennie got a score of 55 which is equivalent to 7th decile in a mathematics te Which of the…

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Q: 2. A manufacturer claims that the average elongation (expressed in %) of thread A exceeds the…

A: Given That  Sample sizes n1=50     , n2=50        Sample means X̄1=15.8     , X̄2=13.7      s1 =2.28…

Q: QUESTION 9 Question: Consider the following Cost payoff table ($): $1 $2 53 14 6 10 15 33 25 22 12…

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Q: Suppose 5% of the population have a certain disease. A laboratory blood test gives a positive…

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A: The question is about one way ANOVA Given :

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Q: A marriage counselor has traditionally seen that the proportion p of all married couples for whom…

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Q: The service life T (this year) of a particular type of electric toothbrush is assumed to have the…

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Q: 0.24 QUESTION 6 Consider the following payoff Table Decision Alternative D1 The State of Nature 0.76…

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Q: wider standard curve is due to: a.Higher standard deviation b. Higher mean c. Lower standard…

A: We have to find correct answer from available options in reference to standard normal curve.

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Q: c. Computation for Coefficient of Determination d. Interpretation of the Coefficient of…

A: cases recoveries deaths   Jan-01 1765 106 4 293 Jan-02 1097 47 5 294 Jan-03 891 8316 4 295…

Q: QUESTION 9 The following is the actual sales for Manama Company for a particular good: t Sales 1 19…

A: The mean square error is formulated as: MSE=1n∑iYi-Y^i2 Where,  Yi=observed valuesn= no. of…

Q: QUESTION 3 A manager wishes to simulate 10 days of operation of an inventory system. The beginning…

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Q: Correlation Matrix     edlevel salnow age time work salbeg edlevel   Pearson's r   —…

A: Given information:   Correlation Matrix     edlevel salnow age edlevel Pearson's r —…

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Q: Problem 7 - (part 1) What is the sum of the mean, median, and mode of these data? 4, 5, 6, 10, 10…

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Q: f(1, 1) = f₁(1)f₂(1) f(1, 2) # f₁(1)f₂(2) for x = 1, y = 1,2 then x and y are: dependent O…

A: Since we know that  If x and y are independent the it must satisfy the following condition f(x,y) =…

Q: The density function of a certain random variable is 22 4x (0.2) 4¹ (0.8)22-42 if x = 0, 1, f(x)=…

A: Solution-: We have given the following pmf f(x)=224x*(0.2)4x*(0.8)22-4x ,  if  x=0,14,24,.....224…

Q: II. The following are scores of Grade 7 - Rizal in a 50-item Test in Math. Construct a frequency…

A: Given the scores of 50-item test in Math. Class interval = 6…

Q: 1. Read and analyze the following problems. Write your solution on a sheet of paper. The coach of…

A: According to guidelines we solve only first question when given questions are different.

Q: How many ways can you select a committee of 4 student our of 10 students?

A: As per our guidelines we are suppose to answer only one question4)Given Total no.of…