The number n of devices that a technician must try to

Assignment Help Basic Statistics

Reference no: EM13645215

The number N of devices that a technician must try to repair during the course of an arbitrary workday is a random variable having a geometric distribution with parameter p = 1/8. We estimate the probability that he manages to repair a given device to be equal to 0.95, independently from one device to another.

What is the probability that the technician manages to repair exactly five devices, before his second failure, during a given workday, if we assume that he will receive at least seven out-of-order devices in the course of this particular workday?
If, in the course of a given workday, the technician received exactly ten devices for repair, what is the probability he managed to repair exactly eight of those?
Use a Poisson distribution to calculate approximately the probability in part (b).
Suppose that exactly eight of the ten devices in part (2) have indeed been repaired. If we take three devices at random and without replacement among the ten that the technician had to repair, what is the probabiliyu that the two devices he could not repair are among those?

Reference no: EM13645215

Questions Cloud

Discuss the data that the graph is used to visually : discuss the data that the graph is used to visually represent. speculate on why the editor chose the graph as opposed

What would you have observed if you had added a : what would you have observed if you had added a concentration solution of nacl to the cocl2 coh2o6 equilibrium system?

How long does it take the flywheel to reach top angular : flywheels are large massive wheels used to store energy. they can be spun up slowly then the wheels energy can be

A random sample of 16 statistics examinations from a large : a random sample of 16 statistics examinations from a large population was taken. the average score in the sample was

The number n of devices that a technician must try to : the number n of devices that a technician must try to repair during the course of an arbitrary workday is a random

A 15 kg ball and a 22 kg ball are connected by a 10 m long : a 1.5 kg ball and a 2.2 kg ball are connected by a 1.0 m long rigid massless rod. the rod is rotating cw about its

Disk has angular velocity omega 01 rads at t 0 and : point a on circuilar disk is at angular position theta 0 at time t 0. disk has angular velocity omega 0.1 rads at t

The electron in a hydrogen atom with an energy of-544 ev is : the electron in a hydrogen atom with an energy of-.544 ev is in a subshell with 18 states.a what is the principal

The steam will pass through a turbine with an isentropic : a remote alaskan village plans to generate electricity from a geothermal source that provides steam at 300 kpa and

User Account

All Pages