A random variable X has a uniform density function f (x) = 1/5 on 20 x
Question:
A random variable X has a uniform density function f (x) = 1/5 on 20 ≤ x ≤ 25.
(a) Find E (X ) and Var (X ).
(b) Find b such that Pr (X ≤ b) = .3.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 33% (3 reviews)
a b 125 EX 25 12 ...View the full answer
Answered By
Rodrigo Louie Rey
I started tutoring in college and have been doing it for about eight years now. I enjoy it because I love to help others learn and expand their understanding of the world. I thoroughly enjoy the "ah-ha" moments that my students have. Interests I enjoy hiking, kayaking, and spending time with my family and friends. Ideal Study Location I prefer to tutor in a quiet place so that my students can focus on what they are learning.
5.00+
1+ Reviews
10+ Question Solved
Related Book For
Calculus And Its Applications
ISBN: 9780134437774
14th Edition
Authors: Larry Goldstein, David Lay, David Schneider, Nakhle Asmar
Question Posted:
Students also viewed these Mathematics questions
-
The number of values of 0, satisfying the conditions sin?e + cos+e = and cos e < in the interval (-x, 27) is %3D Backspace 7 89 4 5 6 1 2 3
-
The solubility product of BaSO4 is1.5 x 10 9. The solubility of BaSO, in 0.1M BaCl2 Solution is The value of x is Backspace 7 8 9 4 5 6 1 2 3
-
A continuous random variable X has the following density function: a. Draw a graph of this density. Verify that the area under the density function equals 1. b. A density function such as this one is...
-
Hot Locks Company developed the following information for its hair dryer sales: Sales price $ 125.00 per unit Variable manufacturing cost $ 44.75 per unit Variable selling expense ...
-
Gold Clothiers reported the following selected items at September 30, 2016 (last years2015amounts also given as needed): Accounts Payable .......... $ 331,000 Cash ................. 302,900...
-
On December 31, 2021, when its Allowance for Doubtful Accounts had a debit balance of $1,400, Dallas Co. estimates that 9% of its accounts receivable balance of $90,000 will become uncollectible and...
-
The thermal efficiency of closed cycle gas turbine is given by (a) \(1-\frac{1}{r_{p}^{\gamma-1}}\) (b) \(1-\frac{1}{r_{p}^{(\gamma-1) / \gamma}}\) (c) \(1-r_{p}\) (d) \(r_{p}-1\)
-
Kelly Company, a small corporation preparing its 2016 financial statements. At the end of 2016, the company purchased a building for $100,000, paid $20,000 as a down payment, and signed an $80,000...
-
Examine the role of Global Supply Chains and the related risks and opportunities in context to international business. Can residents live and work at the same place a tourist seeks enrichment,...
-
The useful life (in hundreds of hours) of a certain machine component is a random variable X with the cumulative distribution function F (x) = 19x 2 , 0 x 3. (a) Find E(X ), and give an...
-
In a study of the vacancies occurring in the U.S. Supreme Court, it has been determined that the time elapsed between successive resignations is an exponential random variable with expected value 2...
-
Why is a repeated measures design likely to be more sensitive than a random groups design?
-
What is the difference between judgment by performance and judgment by structure?
-
Why do sellers generally prefer a Vickrey auction to a regular sealed bid if sellers dont receive the highest bid in the Vickrey auction?
-
Suppose you are an economist for Mattel, manufacturer of the Barbie doll, which was making an unsolicited bid to take over Hasbro, manufacturer of the G.I. Joe doll. a. Would you argue that the...
-
How do the findings of behavioral economics undermine the assumptions of the standard model as to the nature of human beings? (Radical)
-
True or false? If a game has a Nash equilibrium, that equilibrium will be the equilibrium that we expect to observe in the real world.
-
A typical engagement ring has 0.77 cm3 of gold. What mass of gold is present?
-
Show that every group G with identity e and such that x * x = e for all x G is abelian.
-
Graphs of some members of a family of solutions for a first-order differential equation dy/dx = f (x, y) are shown in the following figure. The graphs of two implicit solutions, one that passes...
-
(a) Find an implicit solution of the initial-value problem dy/dx = (y 2 - x 2 )/xy, y(1) = -2. (b) Find an explicit solution of the problem in part (a) and give the largest interval I over which the...
-
Express the solution of the given initial-value problem in terms of an integral defined function. x dy/dx + (sin x)y = 0, y(0) = 10
-
A dielectric slab, with a thickness of 6 cm and dielectric constant of 4, is sandwiched between two different media; free space to the left and another dielectric, with a dielectric constant of 9, to...
-
1. (25 pts) A dielectric slab of thickness d = 3 cm is situated in air. The material is lossless with &= 9 and r = 1. At f= 1.25 GHz, A plane wave with the electric field E = xe illuminates the slab...
-
The company had a beginning account receivable balance of $10,000. The company provided $80,000 of services on account and customers paid $70,000 of their accounts. What is the Accounts receivable...
Study smarter with the SolutionInn App