Each "contour" is a pair of parallel lines with slope 8.
Answer:
c
Step-by-step explanation:
my dads friend died ;-;
When a finite number of samples are drawn from a larger population, the sample mean of that sample, while usually close to the population mean, is not the same thing. A population mean, on the other hand, is a description of pretty much ALL of whatever is being examined.
Example of population: Everyone in the USA
Example of a sample: One person, chosen at random, from each of the 50 states
If f=4 then fx=8 but this question dosent make sense