The slope is 2.
Equation if needed: y= 2x + 1
The answer is B. Two wires are needed
Theoretical: the result is based on the number of outcomes.
Using the coefficient of variation, it is found that students were more variable in their marijuana consumption.
<h3>What is the coefficient of variation of a data-set?</h3>
The coefficient of variation of a data-set is given by the <u>division of the standard deviation of the data-set by the mean of the data-set</u>. The higher the coefficient, the more variable the data-set is.
In this problem, for marijuana consumption, the average was 3.74 and the standard deviation was 1.47, hence:

For depression levels, the average was 19.32 and the standard deviation was 3.18, hence:

Due to the higher coefficient, students were more variable in their marijuana consumption.
To learn more about the coefficient of variation, you can take a look at brainly.com/question/26420974
Answer:
<em>Yes.</em>
Step-by-step explanation:
<em>3.5 + 5.5 > 7.8</em>