Author Question: With an SD of 90, a raw score of 550 is at the 71st percentile, Find the mean of the raw score ... (Read 50 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
With an SD of 90, a raw score of 550 is at the 71st percentile, Find the mean of the raw score distribution.
 
  What will be an ideal response?

Question 2

When the standard deviation has a negative value, then
 
  a. most scores were above the mean
  b. most scores were below the mean
  c. the distribution is badly skewed
  d. none of these, since the standard deviation can never be negative



milbourne11

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

M=500.50

Answer to Question 2

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

For a complete list of videos, visit our video library