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

Author Question: A variable is normally distributed with a mean of 100 and a standard deviation of 10. Which is ... (Read 66 times)

Marty

  • Hero Member
  • *****
  • Posts: 553
on: Jul 25, 2018
A variable is normally distributed with a mean of 100 and a standard deviation of 10. Which is larger, the percentage of observations between 80 and 90 or the percentage of observations between 120 and 130? Explain your reasoning.
 
  What will be an ideal response?

Question 2

The scores from a state standardized test have a mean of 80 and a standard deviation of 10. The distribution of the scores is roughly bell shaped. Use the Empirical Rule to find the percentage of scores that lie between 60 and 80.
 
  A) 47.5 B) 34 C) 68 D) 95


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

karlss

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 25, 2018
Answer to Question 1

Answers will vary. Possible answer: The percentage of observations between 80 and 90 is larger. Both intervals have the same length, but the interval (80,

Answer to Question 2

A


Marty

  • Member
  • Posts: 553
Reply 2 on: Jul 25, 2018
:D TYSM

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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.
a) Thumb pressure with radial deviation b) Alternating stroke using ulnar deviation a) Thumb pressure with radial deviation b) Alternating stroke using ulnar deviation
Variable Gases: Ozone Variable Gases: Ozone
a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments. a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments.
A karyotype arranges the chromosomes in a standard format A karyotype arranges the chromosomes in a standard format
Variable expression of yellow phenotype in mice caused by diet-related epigenetic changes in the gen Variable expression of yellow phenotype in mice caused by diet-related epigenetic changes in the gen
Video: Stroke volume - preload, sarcomere length and Frank -Starling law

For a complete list of videos, visit our video library