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antiseptic1488 [7]
3 years ago
15

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

ber of hours they slept the night before the exam and then correlated these scores with their test grades. He found a +.81 correlation between these two variables. What does this result mean? Group of answer choices
Social Studies
1 answer:
Advocard [28]3 years ago
8 0

Answer:

There is a high positive correlation between sleep and exam performance.

Explanation:

The concept of correlation indicates an association, that is to say, it is used for measuring how much two variables relate to each other. The 3 results of a correlational study are positive, negative, and no correlation. A positive correlation takes place between 2 variables that can increase or decrease together. In this case, the more students sleep, the better they performed at their exams.

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Answer:

Option A

Explanation:

A person attempting to make a phone call while waiting for a meeting, is starting one task before another begins. So, it's not option B since multitasking is completing two or more tasks as once. It's not option C because sequential tasking, is beginning one task and not starting another in till that initial task is completed. It's not cleaving tasks or option D because cleaving tasks just means clinging to one task. Your best answer is option A or "combining tasks", since you are completing a phone call while waiting for your meeting. It means you are completing one task while waiting for another one to start.

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Answer:

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3 years ago
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6 0
3 years ago
Which of these fasteners would not have been found on a pilgrim's clothes?
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Symptoms

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8 0
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Read 2 more answers
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