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 193 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
Excellent

kusterl

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

(c) snow in Nunavut, alter the local albedo, causing altered microclimates. High albedos are found (c) snow in Nunavut, alter the local albedo, causing altered microclimates. High albedos are found
Urinalysis. During a simple urinalysis, a stick with colored blocks is dipped into a urine specimen. Urinalysis. During a simple urinalysis, a stick with colored blocks is dipped into a urine specimen.
Intramuscular drug administration: (c) the needle is inserted at a 90° angle: Source: Pearson Educat Intramuscular drug administration: (c) the needle is inserted at a 90° angle: Source: Pearson Educat
With fewer men than women in college, is it time to consider affirmative action for men? With fewer men than women in college, is it time to consider affirmative action for men?
Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor
The percentage of Canadian students in Grades 7 through 12 who used drugs The percentage of Canadian students in Grades 7 through 12 who used drugs
Video: Introduction to Human Immunodeficiency Virus (HIV)

For a complete list of videos, visit our video library