Answer:
Explanation:
The <em>correlation coefficient</em> is a measure of the linear association between two variables.
It is a dimensionless value bettween - 1 and +1. Hence, it does not depend on the units that are used to measure the data.
You can see the formula to calculate the correlation coefficient in the attached picture.
There you see that the numerator containts the sum of the differences of the values of the x-variable with its the mean, multiplied by the sum of the differences of the values of the y variable with its mean, while the denominator contains the square root of the product of the squares of the same differences, thus the units are canceled.
In conclusion,<em> If the teacher changes the units of each variable from hours to minutes, the value of the correlation coefficient between minutes studying and minutes spent on the Internet will not change</em>; it will continue being <em>−0.72.</em>
Answer:
B. The fifth sentence elaborates on an assertion made in the preceding sentence.
Explanation:
Answer B
Correct. In the fourth sentence, the authors make a claim about the role of mathematics in the sciences, asserting that “the more [mathematics] can be applied usefully within a science, the more advanced the science.” The fifth sentence begins with the conjunction “For,” which is commonly used to introduce reasoning that explains or clarifies an earlier statement. And indeed, the fifth sentence does explain why the application of mathematics helps advance a science: because mathematics functions as both a precise language and a means of measurement.
Brain sends signals to the nervous system and identifies pain, pain can come from an injury which will need treatment in order to heal and ease the "pain" that you feel. That's what I understood from it atleast..
Answer:
<h3>Thomas Malthus argued that the unprecedented population growth will outpace the agricultural revolution, and this will result in deaths through starvation and hunger (Thomas). However, it did not happen. The industrial revolution was the driving force behind social change in Britain, especially the rural lives.</h3>
Answer:
Questioned him to gain privileged information.
Explanation:
Towards the end of the passage, we learn from the speaker that Bradford <em>was a crafty old sophister. </em>
<em>Sophisters</em><em> </em>or<em> sophists </em>were pre-Socratic philosophers whose domain of expertise were skills that can be compared to modern day advocacy, manipulating arguments so as to convince their interlocutors of anything at anytime.
The primary meaning of the word <em>art </em>is skill, <em>artful </em>here meaning <em>skillful</em>. If Bradford were a sophister, that would mean he knew just what to say or do, in order to get what he wanted. And it is exactly what he did. He managed to go unnoticed and get the information he wanted from Keimer thanks to his <em>artful questions.</em>
