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

Author Question: The number of traffic accidents that occurs on a particular stretch of road during a month follows a ... (Read 116 times)

berenicecastro

  • Hero Member
  • *****
  • Posts: 581
on: Jul 25, 2018
The number of traffic accidents that occurs on a particular stretch of road during a month follows a Poisson distribution with a mean of 7.7.
 
  Find the probability that less than two accidents will occur on this stretch of road during a randomly selected month.

Question 2

A ________ is a variable that can assume only a countable number of values. (Choose the best possible answer.)
 
  A) probability distribution B) discrete random variable
  C) random variable D) continuous random variable


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

babybsemail

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 25, 2018
Answer to Question 1

Let x = the number of accidents that occur on the stretch of road during a month.
Then x is a Poisson random variable with  = 7.7.

P(x < 2 ) = P(x = 0 ) + P(x = 1 ) = 0.003940

Answer to Question 2

B


berenicecastro

  • Member
  • Posts: 581
Reply 2 on: Jul 25, 2018
Wow, this really help

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Types of variation in chromosome number. Types of variation in chromosome number.
7 month history of gradual, painless swelling and redness of both eyes 7 month history of gradual, painless swelling and redness of both eyes
Diesel combustion occurs when fuel is injected into the hot, highly compressed air in the cylinder. Diesel combustion occurs when fuel is injected into the hot, highly compressed air in the cylinder.
Overhead stretch for the shoulder muscles. Lean back to create the stretch using your body weight. Overhead stretch for the shoulder muscles. Lean back to create the stretch using your body weight.
Number line (5 - 1) Number line (5 - 1)
Comparison number Grade 1 math Comparison number Grade 1 math
Video: ACTH/Cortisol (glycogenolysis, protein catabolism, lipolysis and gluconeogenesis)

For a complete list of videos, visit our video library