Wednesday
October 1, 2014

Homework Help: Statistics

Posted by Salman on Thursday, December 2, 2010 at 1:16pm.

Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is
f1(x)=2x, 0 <x<1

Instrument 2 yields a measurement whose p.d.f. is
f2(x)=3x^2, 0 <x<1


Suppose that one of the two instruments is chosen at random and a measurement X is made with it.
(a)
Determine the marginal p.d.f. of X.
(b)
If X = 1/4 what is the probability that instrument 1 was used?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Stats and Data - Suppose that either of two instruments might be used for making...
Math - Suppose that either of two instruments might be used for making a certain...
Maths - Suppose that either of two instruments might be used for making a ...
Probability - Let Θ be an unknown random variable that we wish to estimate...
Math - instruments played in a band include a piano drum guitar and saxophone....
PHYSICS - A) As a wind instrument warms up, the resonant frequencies of the ...
physics - A) As a wind instrument warms up, the resonant frequencies of the ...
physics - Two instruments are playing musical note "A" (440 Hz). A beatnote with...
Chemistry - Just wanted to check this. Are the two half reactions for 2K+CaSO4 ...
physics - The acceleration due to gravity on a certain planet is about 6.5 \...

Search
Members