Let x represent the time it takes from when someone enters the line for a roller coaster until they exit on the other side. consider the probability model defined by the cumulative distribution function given below.
0 x < 3
f(x) = (x-3)/1.13 3 < x < 4.13
1 x > 4.13
what is e(x)? give your answer to three decimal places.
what is the value c such that p(x < c) = 0.75? give your answer to four decimal places.
what is the probability that x falls within 0.28 minutes of its mean? give your answer to four decimal places.