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

Author Question: A professor at a local community college noted that the grades of his students were normally ... (Read 260 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
on: Jun 24, 2018
A professor at a local community college noted that the grades of his students were normally distributed with a mean of 74 and a standard deviation of 10 . The professor has informed us that 6.3 percent of his students received A's while only 2.5 percent of his students failed the course and received F's.
 a. What is the minimum score needed to make an A?
  b. What is the maximum score among those who received an F?
  c. If there were 5 students who did not pass the course, how many students took the course?

Question 2

In a regression analysis, the coefficient of correlation is .16 . The coefficient of determination in this situation is
 a. .4000.
  b. .0256.
  c. 4.00.
  d. 2.56.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fwbard

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. 89.3
b. 54.4
c. 200

Answer to Question 2

b


dollx

  • Member
  • Posts: 558
Reply 2 on: Jun 24, 2018
Wow, this really help

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Local and long–distance cell communication in animals. Local and long–distance cell communication in animals.
The transition from college to first job can be a triggering situation for new growth in meaning ... The transition from college to first job can be a triggering situation for new growth in meaning ...
Techniques for applying local anesthesia: (a) topical; (b) nerve block; (c) infiltration; (d) ... Techniques for applying local anesthesia: (a) topical; (b) nerve block; (c) infiltration; (d) ...
An MRI of Professor P.’s acoustic neuroma. The arrow indicates the tumor. An MRI of Professor P.’s acoustic neuroma. The arrow indicates the tumor.
College and university attendance is associated with developmental advances College and university attendance is associated with developmental advances
An example of continuous variation: biology students organized according to height. An example of continuous variation: biology students organized according to height.
Video: Virtual Tour of the Heart

For a complete list of videos, visit our video library