Given that x1x2x3 and x4 are independent random variable

Given that X1,X2,X3, and X4 are independent random variable with mean 2 and variance 4, find E(Y) and E(Z) for :

Y=3X4-X1+(0.2X3

Z= X2+7X3-9X1

Four point charges have the same magnitude of 259 x 10-12 : four point charges have the same magnitude of 2.59 x 10-12 c and are fixed to the corners of a square that is 4.40 cm

The weights of ripe watermelons grown at mr smiths farm : the weights of ripe watermelons grown at mr. smiths farm are normally distributed with a standard deviation of 2.2 lb.

If only one extraction from the turbine occurs at 10 bar : a regenerative steam cycle operates between the limits of 80 bar 540oc and 0.05 bar. if only one extraction from the

The appropriate pumps are used for the water leaving the : consider a regenerative cycle utilizing steam as the working fluid. steam enters the turbine at 3.5 mpa 400oc and

Given that x1x2x3 and x4 are independent random variable : given that x1x2x3 and x4 are independent random variable with mean 2 and variance 4 find ey and ez for y3x4-x10.2x3z

A model rocket is launched straight upward with an initial : a model rocket is launched straight upward with an initial speed of 70.0 ms. it accelerates with a constant upward

It is then reheated to 400oc and is then expanded to 10 kpa : consider a reheat cycle utilizing steam as the working fluid. steam enters the high pressure turbine at 3.5 mpa 400oc

A steam power plant utilizing the rankine cycle has the : a steam power plant utilizing the rankine cycle has the following particulars- steam pressure and temperature at inlet

Suppose a charge of -210 microc is at the origin and a : suppose a charge of -2.10 microc is at the origin and a charge of 2.90 microc is at the point 0 3.00 m.a find the