The answer is D.
If it rotates around the origin for 2 quadrants then it would have rotated 180 degrees.
209.1 is what your looking for
It is called a point of concurrency
Answer:
Mean, μ = 200
Standard deviation, σ = 10
Step-by-step explanation:
Data provided:
a) true percentage of graduates who stay at their first job less than two years
p = 50% = 0.5
q = 1 - p = 1 - 0.5 = 0.5
Number of graduates selected in a group, n = 400
Now,
The mean is calculated as:
Mean, μ = p × n
or
μ = 0.5 × 400 = 200
and,
standard deviation, σ = 
or
σ = 
or
σ = √100
or
σ = 10