X and Y are both positive or zero numbers. Each random variable has a mean of fifteen

Fantastic news! We've Found the answer you've been seeking!

Question:

X and Y are both positive or zero numbers. Each random variable has a mean of fifteen and a variance of five, with Corr(X, Y) = 0.9.
1. Determine a constant c that makes X and X + cY separate.
2. What is the distribution of W = X + cY?

Related Book For answer-question

Elementary Statistics

ISBN: 978-0538733502

11th edition

Authors: Robert R. Johnson, Patricia J. Kuby

See More Books

Posted Date: May 15, 2021 12:27 PM

See More Questions

A binomial random variable has a mean equal to 200 and a standard deviation of 10. Find the values of n and p.
A stationary random process, X (t), has a mean of X and correlation function, RX, X (t). A new process is formed according to Y (t) = aX (t) + b for constants and. Find the correlation function in...
Assume a Poisson random variable has a mean of 6 successes over a 120-minute period. a. Find the mean of the random variable, defined by the time between successes. b. What is the rate parameter of...
Linda has d dollars in an account that pays 1.4% interest, compounded weekly. She withdraws w dollars. Express her first weeks interest algebraically.
Which group of economic decision makers plays the leading role in the economic system? Which groups play supporting roles? In what sense are they supporting actors?
Use the following data for parts (a) through (g). a. Determine the equation of the simple regression line to predict y from x. b. Using the x values, solve for the predicted values of y and the...
Mrs. Clarks Foods was an Iowa company engaged in the business of distributing juice beverages. International Suntrade and Miller & Smith Foods were Canadian companies that acted as brokers...
Toms Shoe Repair provides a variety of shoe and repair services. Analysis of monthly costs revealed the following cost formulas when direct labor hours are used as the basis of cost determination:...
True regarding amendments that propose to change the proportional percentage by which each condominium or cooperative member shares common areas expenses or owns the common surplus in Florida?
Suppose the following information is from the 2025 annual report of American Greetings Corporation (all dollars in thousands). The notes to the company's financial statements also include the...
Question 25 The section that informs the reader on the gaps in current knowledge and possible areas of future research is known as _________________ Bibliography Appendices Recommendation Conclusio
On February 1, a US company buys goods from a UK company for 80,000 British pounds, payable on March 1. The exchange rate on February 11s 0.752 per US dollar, and the exchange rate on March 1 is...
Answer the following prompt questions for this discussion with your fellow students: 1. What kinds of stories, topics, or issues are not being covered well by mainstream newspapers (in print or...
On planet # 4 , you fire a projectile from the ground at an initial speed of 3 8 . 8 m / s at an angle of 6 8 . 8 degrees above the horizontal. The projectile lands 6 9 . 1 m away from the launch...
Account Classification Amount Direct materials All variable $367,500 Direct manufacturing labour All variable 297,500 Power All variable 87,500 Supervision labour 20% variable 70,000...
Consider the following trees. Classify each as either full, complete, both full and complete, or neither full nor complete. Circle your answer and provide explanation why. Also, which of the trees...
On December 31, 2000, the S&P 500 index was 1,469.25. Twenty-one years later, on December 31, 2021, the Index was 4766.18. Determine the Geometric Average rate of return on the index for these 21...
Solve for the equilibria of the following discrete-time dynamical systems Pr pt+1 = Pr+2.0(I-Pr)
Find the following: a. P(-2.05 < z < 0.00) b. P(-1.83 < z < 2.07) c. P(z < -1.52) d. P(z < -0.43)
Construct a 90% confidence interval estimate for the mean using the sample information n = 53 = 87.2 and s = 11.9.
a. Set the slider for level of confidence to 68%. Click sample! to construct one 68% confidence interval. Note the upper and lower confidence limits and calculate the width of the interval. Using...
A dwarf planet moves around the Sun on an elliptical orbit with semi-major axis $a$, semi-minor axis $b$ and period of revolution $T$. Determine the speed when its direction is perpendicular to...
Calculate the radius $R_{S}$ of the orbit of a geostationary satellite using the lunar period, $T=27.3$ d, and the Earth-Moon distance, $D_{T L}=3.810^{5} \mathrm{~km}$, as data.
In the case of a gravitationally bound two-body system on an elliptical orbit in which there is energy dissipation as in the case of the question 4, explain why the system first tends to have a...

X and Y are both positive or zero numbers. Each random variable has a mean of fifteen

Question:

Expert Answer:

x and y are both positive and zero numbers variance both x an... View the full answer

Elementary Statistics

Students also viewed these mathematics questions