1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darina [25.2K]
3 years ago
12

Professor Izadi is interested in determining the association between sleep and cognitive performance. He surveyed his students a

bout the number of hours they slept the night before an exam and then correlated these scores with their test grades. He found a .81 correlation between these two variables. What does this result mean?
Social Studies
1 answer:
I am Lyosha [343]3 years ago
5 0

Answer:

There is a high positive correlation between sleep and exam performance

Explanation:

Correlation studies the degree of association between two variables. A correlation coefficient of 0.5 to 1 is regarded as a strong correlation, that is an increase in one variable will result in an increase in the other variable. A correlation coefficient that lies between 0.3 to 0.49 is regarded as moderately correlated while a value of 0 means that there is no correlation.

Thus, the result of this study shows that an increase in sleeping time will result in better exam performance.

You might be interested in
If the time an attacker takes to break through the organization’s preventive controls is shorter than the sum of the time requir
Rudiy27

Answer:

ineffective.

Explanation:

Hello! The security must handle the times of its actions well if it wants to catch criminals and provide confidence to the citizen they protect. If it is not so and it takes a long time to participate in the operation, it is considered that they are not doing their job correctly and will generate doubts about its effectiveness to carry out the work.

3 0
3 years ago
Shayla <br> what was her average speed in miles per hour
faust18 [17]

Answer:

well to answer the question i need some numbers XD

Explanation:

3 0
3 years ago
____ advocated laissez-faire. In contrast, _____ argued that prices and wages were not flexible enough for markets to self-adjus
hodyreva [135]

Answer:

Classical economist, Keynes

Explanation:

The economist spending time in total economics and the output of the effects. It was developed by the Keynesian economists in 1930 to know about the great depression. This the phenomenon that pulls out the great economy from out of the danger called the great depression. The main aim of this theory is to obtain the performance level of the economy. This is the theory that tells about the new way of thinking.  

Thus classical economist advocates Laissez-Faire. On the other hand, Keynes that prices and wages were not flexible enough to make the market self adjust and make the discretionary fiscal policy.

3 0
2 years ago
Identify four facts for eachAthens and Sparta
valkas [14]
Athenians are more artsy, democratic, Athenians don’t allow women to go to war, and Athenians protect the woman front the men.

Spartans are more violent, they train women for war, they throw babies into a volcano is they are born sick(I think), the Spartans also don’t have a strong navy.
7 0
3 years ago
1. Which statement is an example of an overt behavior caused by an emotion?
marusya05 [52]

Answer: The correct answer is D. Keegan screams loudly when his brother startles him.

Explanation: Overt behaviors are a certain type of conduct that can be observed by others. Talking, walking, screaming, laughing, are all examples of overt behaviors.

Covert behaviors are behaviors that can be done in secrecy or privacy and cannot be observed by others. Thinking, feeling, perceiving are all examples of covert behaviors if they are not displayed by the person experiencing them.

In this particular example, the only statement that is an example of overt behavior caused by emotion is:

D. Keegan screams when his brother startles him.

The emotion that Keegan is experiencing is fear and the observable behavior that she displays to express that emotion is screaming.

<u />

3 0
3 years ago
Other questions:
  • Which of nash's character qualities would you say are the upside of his genius?
    8·1 answer
  • Which interest could best help someone become an athletic trainer
    11·2 answers
  • What made harnan cortes famous
    14·2 answers
  • Minerals are classified according to their _____.
    13·1 answer
  • The population of a country has been decreasing for several decades. In​ 1990, the population was about 138 million people. In​
    9·1 answer
  • 20 POINTS! Do widespread quarrying and dams cause the kerala floods? write a short account on this. ​
    9·1 answer
  • You are dependent on your professor for your grade. Your professor, in turn, is dependent on you for his or her job. Hegel would
    6·1 answer
  • the lapita civilization is best known for its _____. religious practices extensive empire beautiful pottery advanced technology
    10·2 answers
  • How many people are in America??
    15·2 answers
  • The "free exercise clause" of the First Amendment is intended to
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!