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

Author Question: A teacher determines that the correlation between eating breakfast and doing well on the test is ... (Read 141 times)

Tirant22

  • Hero Member
  • *****
  • Posts: 532
on: Jul 31, 2018
A teacher determines that the correlation between eating breakfast and doing well on the test is zero. This means:
 
  a. a perfect correlation exists
  b. there is an absence of a correlation
  c. a negative correlation exists
  d. the correlation cannot be determined

Question 2

If the researcher knows that the mean is 60 and the standard deviation is 6, then the majority of the scores falling between +1 or -1 standard deviation of the mean fall between:
 
  a. 60 and 66
  b. 54 and 60
  c. 54 and 66
  d. Not enough information is provided


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ktidd

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 31, 2018
Answer to Question 1

b

Answer to Question 2

c


Tirant22

  • Member
  • Posts: 532
Reply 2 on: Jul 31, 2018
Wow, this really help

kswal303

  • Member
  • Posts: 316
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Guinea pig being injected to test a chemical for its carcinogenic properties Guinea pig being injected to test a chemical for its carcinogenic properties
Generalized pressure drop correlation Generalized pressure drop correlation
Schematic drawing of a permeation test cell used to measure the permeation rate of chemicals through ... Schematic drawing of a permeation test cell used to measure the permeation rate of chemicals through ...
Rinne test. Air conduction Rinne test. Air conduction
Table - Correlation Analysis Table - Correlation Analysis
Table - Correlation Analysis Table - Correlation Analysis
Video: Bond in biological molecules (Ionic, Covalent and Hydrogen bonds)/ How atoms bond?

For a complete list of videos, visit our video library