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

Author Question: The number of electrical outages in a city varies from day to day. Assume that the number of ... (Read 40 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jun 24, 2018
The number of electrical outages in a city varies from day to day. Assume that the number of electrical outages (x) in the city has the following probability distribution. x f(x) 0 0.80 1 0.15 2 0.04 3 0.01 The mean and the standard deviation for the number of electrical outages (respectively) are
 a. 2.6 and 5.77
  b. 0.26 and 0.577
  c. 3 and 0.01
  d. 0 and 0.8

Question 2

An experiment consists of determining the speed of automobiles on a highway by the use of radar equipment. The random variable in this experiment is a
 a. discrete random variable
  b. continuous random variable
  c. complex random variable
  d. simplex random variable


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sarahjh

  • Sr. Member
  • ****
  • Posts: 370
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

B


geoffrey

  • Member
  • Posts: 880
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

kalskdjl1212

  • Member
  • Posts: 353
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Types of variation in chromosome number. Types of variation in chromosome number.
Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds
(a) The low-resolution signal has the same number of pulses as the engine has cylinders. (b) A ... (a) The low-resolution signal has the same number of pulses as the engine has cylinders. (b) A ...
An 8th grade class develops a linear model that predicts the number of cheerios (a small round ... An 8th grade class develops a linear model that predicts the number of cheerios (a small round ...
An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ... An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ...
Number line (real numbers) Number line (real numbers)
Video: Kidney Stones

For a complete list of videos, visit our video library