This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The expected value of the random variable x is a. b. the standard error c. the sample size d. ... (Read 93 times)

khang

  • Hero Member
  • *****
  • Posts: 569
on: Jun 24, 2018
The expected value of the random variable x is
 a.
  b. the standard error
  c. the sample size
  d.

Question 2

A manufacturing company has 5 identical machines that produce nails. The probability that a machine will break down on any given day is .1 . Define a random variable x to be the number of machines that will break down in a day.
 a. What is the appropriate probability distribution for x? Explain how x satisfies the properties of the distribution.
  b. Compute the probability that 4 machines will break down.
  c. Compute the probability that at least 4 machines will break down.
  d. What is the expected number of machines that will break down in a day?
  e. What is the variance of the number of machines that will break down in a day?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Fayaz00962

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

a. binomial
b. .0004
c. .0004
d. .5
e. .45


khang

  • Member
  • Posts: 569
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Relationship between winter rainfall and chuckwalla, Sauromalus, size Relationship between winter rainfall and chuckwalla, Sauromalus, size
Guidelines for proper blood pressure cuff size Guidelines for proper blood pressure cuff size
Schematic representations of (a) random, (b) alternating, (c) block, and (d) graft copolymers. Schematic representations of (a) random, (b) alternating, (c) block, and (d) graft copolymers.
The effects of neonatal testosterone exposure on the size of the sexually dimorphic nuclei in male ... The effects of neonatal testosterone exposure on the size of the sexually dimorphic nuclei in male ...
Variable Gases: Water Vapor Variable Gases: Water Vapor
Bateson and Punnett’s Observed and Expected Phenotypes in F2 Sweet Peas Bateson and Punnett’s Observed and Expected Phenotypes in F2 Sweet Peas
Video: Interview with Person having Obsessive Compulsive Disorder

For a complete list of videos, visit our video library