Answer: C
Step-by-step explanation:
Answer:
x=-2
Step-by-step explanation:
Answer:
83.33% change
Check work:
30 x 0.8333 = 24.999
30 + 24.999 = 54.999 or about 55
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.
