Answer:
Both Answers are in the following attachment (a) and (b)
Step-by-step explanation:
Answer:
a=2
b=6
Step-by-step explanation:
Assuming a uniform distribution and that a ≤ x ≤ b, if f(x) = 1/4, then:

If P(X > 4) = 1/2, then:

The values for a and b are, respectively, 2 and 6.
Answer:
907.46
Step-by-step explanation:
We know the area of a circle is:
