GT

Length of Hospital Stays: The average length of “short” hospital stays for men is slightly longer thatn that for women: 5.2 days vs. 4.5 days. A random sample of recent hospital stays for both men and women revealed the following. At ? = 0.01, is there su...

A truck of mass 3000 kg is harnessed to a trailer (Trailer A) of mass 1000 kg. The trailer is hooked to ANOTHER trailer (Trailer B) of mass 500 kg. The truck begins to accelerate to the right at 1 m/s2, pulling the trailers along. What is the ratio of the...

For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000. Details and assumptions A poly...

5) If K=1 then the probability is (1/3)*(3/4)+(2/3)*(1/4) If K=2 then (1/3)*(1/4)*(3/4)+(2/3)*(3/4)*(1/4) If K=3 then (1/3)*(1/4)^2(3/4)+(2/3)*(3/4)^2*(1/4) For K=n then (1/3)*(1/4)^(n-1)(3/4)+(2/3)*(3/4)^(n-1)*(1/4) We are looking for the expected value...

@Hamzeh I think the right answer is: 20*(3^6-2*3*(2^6)-3)=1335/5832=0/2289

@cle we are trying to calculate the sum of (1-p)^(x-1)=1+(1-p)^2+(1-p)^4+....+(1-p)^2k=1+sum(1-p)^2k for k=1,2,..... Thus (using the sum of geometric series formula we get => 1+(1-p)^2/(1-(1-p)^2)=1+(1-p)^2/(2p-p^2)=1/(2p-p^2) pY(2)=1/2p*1/(2p-p^2)=1/2*1/...