Which of the functions sketched below could be a probability density function?

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Identify the number as a rational or irrational.explai. 291.87