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

Author Question: IQ scores form a normal distribution with = 100 and = 15 . Individuals with IQs between 90 and110 ... (Read 57 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jun 20, 2018
IQ scores form a normal distribution with  = 100 and  = 15 . Individuals with IQs between 90 and110 are classified as average. What proportion of the population is average?
 
  a. 0.7486 c. 0.4972
  b. 0.5028 d. 0.2486

Question 2

IQ scores form a normal distribution with  = 100 and  = 15 . Individuals with IQs above 140 are classified in the genius category. What proportion of the population consists of geniuses?
 
  a. 0.9962 c. 0.4962
  b. 0.5038 d. 0.0038


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chou

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

D


rmenurse

  • Member
  • Posts: 513
Reply 2 on: Jun 20, 2018
YES! Correct, THANKS for helping me on my review

robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

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?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Desert distribution and climate Desert distribution and climate
Geographic distribution of early hominins. Geographic distribution of early hominins.
Associate’s degrees or vocational degrees can help individuals find rewarding and productive ... Associate’s degrees or vocational degrees can help individuals find rewarding and productive ...
The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ... The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ...
Changes in bronchioles during an asthma attack: (a) normal bronchiole; (b) asthmatic bronchiole. Changes in bronchioles during an asthma attack: (a) normal bronchiole; (b) asthmatic bronchiole.
Two normal frequency distributions with the same mean but different amounts of variation Two normal frequency distributions with the same mean but different amounts of variation
Video: Carbohydrate Metabolism: Introduction to renal processes and filtrate formation and composition

For a complete list of videos, visit our video library