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>
The evaluation of training activities helps to establish a worth include value, merit or excellence of something and target towards re-building endurance.
Many Americans of the time viewed the vices as executed by those by poor backgrounds and especially the blacks and Mexicans. The views however improved marginally in the 19c.
Resulta ng larawan para sa iligal na pagputol ng mga puno sa kagubatan
Ang iligal na pagtotroso ay ang pagputol ng mga puno, pagdadala ng mga ito, o paggamit ng kanilang mga produkto tulad ng troso para sa pang-ekonomiyang kita laban sa pagbabawal ng batas. ... Ang labis na pagkuha ng troso na lampas sa itinakdang limitasyon ay pantay na binibigkas bilang ilegal na pagtotroso .