A traffic light at a certain intersection is green 50% of the time, yellow 30% of the time, and red 20% of the time. A car approaches this intersection once each day. Let X represent the number of days that pass up to and including the first time the car encounters a red light. Assume that each day represents an independent trial. Let Y denote the number of days up to and including the third day on which a red light is encountered. a. Find P(Y = 4).b. Find the mean of Y. c. Find the variance of Y.

529 and 531

step-by-step explanation:

d. all of the above

step-by-step explanation:

no oblique asymptote

step-by-step explanation:

to find the oblique asymptote of f(x)

here numerator has degree 1 and denomintor degree 2

degree of numerator < degree of denominator

hence there is no oblique asymptote

when the degree of the denominator > that of the numerator, we saw that the value in the denominator got so much bigger, so quickly,   giving us a horizontal asymptote of the x-axis. or we can write

f(x) = a polynomial of x + a proper fraction.

in this case only we have oblique asymptotes but not when numerator has less degree.