« previous next »

Author Question: Assume x is normally distributed with mean = 15 and standard deviation = 3 . Use the approximate ... (Read 100 times)

mwit1967

  • Hero Member
  • *****
  • Posts: 501
on: Jun 24, 2018
Assume x is normally distributed with mean  = 15 and standard deviation  = 3 . Use the approximate areas beneath the normal curve, as discussed in this section, to find P(x 12).

Question 2

The average cost of renting a compact size car in a major metropolitan area of the U.S. is 51.74 with a standard deviation of 7.48 . Assume a normal distribution. If a sample of 20 cities is taken, what is the probability that the sample mean will fall between 47.74 and 55.74?


Animal_Goddess

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 24, 2018
Answer to Question 1

0.8415

Answer to Question 2

0.9832


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

mwit1967

  • Hero Member
  • *****
  • Posts: 501
Reply #2 on: Jun 24, 2018
Thank you


Animal_Goddess

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh
Standard Medical Record and Types of Reports Found in Record Standard Medical Record and Types of Reports Found in Record
a) Thumb pressure with radial deviation b) Alternating stroke using ulnar deviation a) Thumb pressure with radial deviation b) Alternating stroke using ulnar deviation
How to sketch a quadratic equation that is in standard form (Question 2) How to sketch a quadratic equation that is in standard form (Question 2)
How to fully analyze the standard and factored form of a quadratic equation (Question 2) How to fully analyze the standard and factored form of a quadratic equation (Question 2)
A blade and assorted plates for a standard grinder A blade and assorted plates for a standard grinder
Video: Glycolysis Animation

For a complete list of videos, visit our video library