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

Author Question: A group of 100 students took a test. The mean score was 75, the standard deviation was 5, and the ... (Read 55 times)

jwb375

  • Hero Member
  • *****
  • Posts: 540
on: Jul 8, 2018
A group of 100 students took a test. The mean score was 75, the standard deviation was 5, and the scores were normally distributed. About how many scores fell between 70 and 80?
 
  A) 34
  B) 68
  C) 95
  D) Impossible to determine

Question 2

If the bulk of scores from a test occurred at the upper end of the distribution, the distribution could be described as:
 
  A) Normal
  B) Bimodal
  C) Positively skewed
  D) Negatively skewed


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Jul 8, 2018
Answer to Question 1

B

Answer to Question 2

D


jwb375

  • Member
  • Posts: 540
Reply 2 on: Jul 8, 2018
YES! Correct, THANKS for helping me on my review

alexanderhamilton

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

The nurse is using Standard Precautions to draw blood. The nurse is using Standard Precautions to draw blood.
Talar Tilt Test Talar Tilt Test
Treadmill ¬exercise stress test. Treadmill ¬exercise stress test.
College Students, By Sex and Race-Ethnicity College Students, By Sex and Race-Ethnicity
Starch iodine test for alpha amylase. Starch iodine test for alpha amylase.
Tickets for the school play were $3 for students and $5 for all others. The box office sold 750 ... Tickets for the school play were $3 for students and $5 for all others. The box office sold 750 ...
Video: Haustral churning, Gastrocolic reflex and mass peristalsis & Defecation

For a complete list of videos, visit our video library