slope is just "how much up or down" for one step to the right.
its clearly negative here
only -3 seems to be remotely plausible looking at the graph in your screenshot
Answer:
The correct option is 2. The mean decreases, and the median remains the same.
Step-by-step explanation:
The formula of mean is

Since the person earning $15 per hour quits and is replaced with a person earning $8 per hour, therefore


Since sum of employees earnings decreased by $7, therefore the mean will decreases.
In a box plot the line inside the box represent the median.
From plot 1 we can say that the median is 9.5. From plot 2 we can say that the median is 9.5.
Therefore the median remain the same.
Option 2 is correct, the mean decreases, and the median remains the same.
If a theory is challenged, then that means that the theory may have a specific flaw, making it "not good"
You basically have a triangle and a rectangle. seperate the two at first, the rectangle's area is 32 since 8*4=32
the area of a triangle is half of it's base times width. so 3*5=15/2=7.5
add 7.5 and 32 to get 39.5