Answer:
x = 6
Step-by-step explanation:
opposite sides of both angles are congruent/equal or have same measure.
Therefore:-
6x+2=38
6x=38-2
6x=36
x = 6
We can solve this problem by using the formula:
s = σ / sqrt(n)
where,
s = standard deviation of the sample
σ = standard deviation of the population = 3 years
n = number of samples = 100
Substituting:
s = 3 years / sqrt (100)
s = 0.3 years (ANSWER)
The positive square root is 0.5