13.Suppose a continuous random variable x has the probability density (k(1+x),
f(x) =
lo,
{(1 + r).
0 < x < 2
elsewhere
(a) Find k (b) Find P(0.2 < x < 0.3) (c) P(x > 1.4) using distribution function, determine
the probabilities that (d) x is less than 2.2 (e) between 1.3 and 1.7 (1) Calculate mean and
variance for the probability density function.

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

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step-by-step explanation: