Answer:
The formulas are functionally the same, but 'n' (the sample size) is used instead of 'N' (the population size).
Step-by-step explanation:
The sample mean is the average value for a set of observations which is derived from a population. While the population mean is the average value for the entire set of observation belonging to a particular study of interest.
The set of observation belonging to a population is denoted by 'N' ; while the sample size is denoted as 'n' :
The mean formula is written thus :
Population mean = Σx / N
Sample mean = Σx / n
Where, x = set of values.
Answer:
one solution: (x, y) = (1, 0)
Step-by-step explanation:
See below for a graph with the one solution identified.
Answer:
5
Step-by-step explanation:
angles in a triangle will alwasy equal 180*
75+69=144
180-144=36
now you need to find what number subed for x will = 36
7(5)+1= 35+1=36
good luck and hoped this helped