Calculus and Above

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In the following probability​ distribution, the random
In the following probability​ distribution, the random variable x represents the number of activities a parent of a Upper KK to 5 th5th​-grade student is involved in. Complete parts​ (a) through​ (f) … read more
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The joint pdf of a bivariate random variable (X,Y) is given
The joint pdf of a bivariate random variable (X,Y) is given by: f(x,y) = ck for 0… read more
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A UNSW student is picked at random and tested for COVID-19
A UNSW student is picked at random and tested for COVID-19 using a new experimental testing procedure.Let X be the binary random variable equal to 1 if the student is actually infected with COVID-19 a… read more
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Are you available tomorrow around 11 pm, 2nd May (AEST) Time
Hi, Are you available tomorrow around 11 pm, 2nd May (AEST) Time in Canberra ACT ? That way we can connect to solve estimation and multiple random variable quizzes.… read more
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Assist with the attached questions. Question #9 The
Please assist with the attached questions.Question #9 The population proportion is .70. What is the probability that a sample proportion will be within =or- 0.01 of the population proportion for each … read more
Sandhya
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1. Find the slope of the line having x intercept: 3 and
1. Find the slope of the line having x intercept: 3 and passing through the point (4, -9). 2. Find the domain of the following functions a) f(x) =(x+1)/(x2 -6x+5) b) f(x) = (x+11)/(x2 -64) c) f(x) = (… read more
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Glenn only Exam 250714 1. In testing equality of two
For Mr. Glenn only Exam 250714 1. In testing for the equality of two population variances, when the populations are normally distributed, the 10% level of significance has been used. To determine the … read more
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I am preparing for a probability theory test and I am having
I am preparing for a probability theory test and I am having problems with MGF's these are some examples from previous exams which I would like solutions for along with explanations to help me study. … read more
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1. (a) Use the definition of moment generating functions to
1. (a) Use the definition of moment generating functions to show that if MX(t) is the mgf of a continuous random variable X, then if Y = (X+a)/b, MY (t) = e^(a/b)t MX(t/b) ￼￼ (b) Choose appropriate co… read more
Expert
Above 1. Given the significance level 0.025, the F-value for
Above 1. Given the significance level 0.025, the F-value for the degrees of freedom, df = (7,3) is A. 14.62. B. 8.45. C. 27.67. D. 5.89. 2. Which of the following statements are true regarding the sim… read more
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Pen Foster Exam 250714RR1. Another name for the residual
Penn Foster Exam 250714RR 1. Another name for the residual term in a regression equation is A. residual analysis. B. random error. C. homoscedasticity. D. pooled variances. 2. A chi-square test for in… read more
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A random variable X has the probability density f(x):=2axe^-(ax^2)
A random variable X has the probability density f(x):=2axe^-(ax^2) for x>0 and 0 otherwise where a>0 is a parameter. Show that E[X] = 1/2 sqrt(pi/a).… read more
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Suppose 10 golfers enter a tournament with respective skill
1-Suppose that 10 golfers enter a tournament and that their respective skill levels are approximately the same. Six of the entrants are female and two of those are older than 40 years old. Three of th… read more
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I have one more question that I would like help with please.
Hello, I have one more question that I would like help with please. It is wanted by Monday night. Nutrition education programs, which teach their clients how to lose weight or reduce cholesterol level… read more
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The density function of a random variable X is given by f(x)=1/5
The density function of a random variable X is given by f(x)=1/5 sqrt 2pi e ^ -(x+1.3)^2/50. Find its math expectation, variance and distribution function… read more
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The density function of a random variable X is given by f(x)=1/5
The density function of a random variable X is given by f(x)=1/5 sqrt 2pi e ^ -(x+1.3)^2/50. Find its math expectation, variance and distribution function… read more
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X are iid random variables with symmetrical distribution f(x),
X are iid random variables with symmetrical distribution f(x), mu and sigma. Minimize the sum of absolute value of (Xi - b) wrt b. b turns out to be the median but how do we get there?… read more
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"StatsPro" 21. Which of the following statements are true? I.
"StatsPro" 21. Which of the following statements are true? I. Random sampling is a good way to reduce response bias. II. To guard against bias from undercoverage, use a convenience sample. III. Increa… read more
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