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.
If I did the math right it would be 212°.
180°/pi x 3.7 = 666/pi = 212°
In the given figure, it's an Isosceles triangle having two equal sides RP and RQ, therefore their opposite angles will be equal as well, that is ~
Angle P = Angle Q = 29°
Now, by Angle sum property of a triangle, we get ~
Therefore , value of x is 17°
