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

Author Question: Assume that x is normally distributed random variable with a mean of 30 and a standard deviation of ... (Read 77 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Jul 24, 2018
Assume that x is normally distributed random variable with a mean of 30 and a standard deviation of 6 . Find P(21 < x < 37).

Question 2

Assume that x is normally distributed random variable with a mean of 30 and a standard deviation of 6 . Find P(32< x < 47).


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

elizabethrperez

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 24, 2018
Answer to Question 1

P(21 < x < 37) = P(-1.50 < z < 1.17) = 0.4332 + 0.3790 = 0.8122

Answer to Question 2

P(32< x < 47) = P(0.33 < z < 2.83 ) = 0.4977  0.1293 = 0.3684


go.lag

  • Hero Member
  • *****
  • Posts: 667
Reply #2 on: Jul 24, 2018
Thanks


elizabethrperez

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species
Elementary particles included in the Standard Model Elementary particles included in the Standard Model
Variable Gases: Ozone Variable Gases: Ozone
Massage is used as a complement to standard medical treatment in hospitals and skilled nursing ... Massage is used as a complement to standard medical treatment in hospitals and skilled nursing ...
How to rearrange formulas to isolate for a variable How to rearrange formulas to isolate for a variable
What Is a Standard Drink? What Is a Standard Drink?
Video: Brain Anatomy Animation (Part 1 of 2)

For a complete list of videos, visit our video library