Find the expected value and variance of y

Assignment Help Basic Computer Science

Reference no: EM131197169

Suppose that 10% of a brand of microcomputers will fail before their guarantee has expired. If 1,000 computers are sold this month, find the expected value and variance of Y, the number that have not failed during the guarantee period. Within what limit would Y be expected to fall? [Hint: Use Tchebysheff's theorem.]

Reference no: EM131197169

Questions Cloud

Expression for the electric field : Give an expression for the electric field very far from the ring, when z0>>R. Write this expression in terms of the Coulomb constant k, the charge density l,the distance z0,and the radius R.

Calculate the volume of the earth : Calculate the volume of the Earth (VE ) and the Sun (Vs ) and compare them to each other by dividing the volume of the Sun by the volume of the Earth. Express the result in words.

Amplitude of the wave traveling on the second string : If a wave of angular frequency ω and amplitude A is traveling in the +x direction on the first string, find the amplitude of the wave traveling on the second string.

List three direct costs and three indirect costs : Assume that you tour Apple's factory where it makes its products. List three (3) direct costs and three (3) indirect costs that you are likely to see.

Find the expected value and variance of y : find the expected value and variance of Y, the number that have not failed during the guarantee period. Within what limit would Y be expected to fall? [Hint: Use Tchebysheff's theorem.]

Find the velocity of the lava bomb : A volcano launches a lava bomb straight upward with an initial speed of 25 m/s. a. Taking upward to be the positive direction, find the velocity of the lava bomb 3.0 seconds after it is launched. Express your answer using two significant figures.

What is the exact angle made : What is the exact angle made when the minute hand and the hour hand of the clock meet between 1 and 2 o clock taking 12 o clock as zero degrees?

What is the expected number of tests needed in method 2 : For fixed k, what is the expected number of tests needed in method 2?

Identify fund that typically used to record the transaction : Identify the fund that typically would be used to record the transaction.- Indicate how each transaction would be reported in the operating statement for each fund affected.

User Account

All Pages