Let x be the amount of time (in hours) the wait is to get a table at a restaurant. Suppose the cdf is represented by
[0, x<0
f(x) = [x²/4.0 ≤ x ≤ 2
[1, x>2
Use the cdf to determine P(0.5 ≤ X≤ 1.75).
a. 0.2181
b. 0.2969
c. 0.4362
d. 0.7656
e. 0.7031