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

Author Question: Scores on a particular test are normally distributed with a mean of 126 points. Find the standard ... (Read 237 times)

rlane42

  • Hero Member
  • *****
  • Posts: 594
on: Jul 24, 2018
Scores on a particular test are normally distributed with a mean of 126 points. Find the standard deviation if for these scores, P90 = 160.0.

Question 2

The random variable x has a normal distribution with mean of 75.0 and standard deviation of 2.5 . Waiting times to see a doctor at a large clinic are normally distributed with a mean of 68.2 minutes and a standard deviation of 14.8 minutes. Find the probability that the waiting time to see a doctor is less than 45.0 minutes.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jharrington11

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jul 24, 2018
Answer to Question 1

26.6

Answer to Question 2

0.0582


rlane42

  • Hero Member
  • *****
  • Posts: 594
Reply #2 on: Jul 24, 2018
Thanks


jharrington11

  • Sr. Member
  • ****
  • Posts: 365
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Primary pulse points of the body. Primary pulse points of the body.
Antibody techniques. (b) An ELISA to test for the presence of herpes simplex virus (HSV Antibody techniques. (b) An ELISA to test for the presence of herpes simplex virus (HSV
Human salivary alpha amylase test. Human salivary alpha amylase test.
Expected Distribution of IQ Scores Expected Distribution of IQ Scores
Find the two integers that have a sum of 20 and a maximum product Find the two integers that have a sum of 20 and a maximum product
Urine Test for Pregnancy Urine Test for Pregnancy
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

For a complete list of videos, visit our video library