Question

Hi! So this question kind of has two parts to it. If someone could help me with this, that would be great! Thanks! :)

Juan lives in a large city and commutes to work daily by subway or taxi. He takes the subway 80% of the time because it costs less and he takes a taxi 20% of the time because it saves time. When taking the subway, he arrives at work on time 70% of the time.

Question A: What is the probability that Juan took the subway and is at work on time any given day?

Question B: The probability that Juan took a taxi and arrived on time is 18%.

Knowing that he takes a taxi 20% of the time, what is the probability that the taxi arrived on time.

Answer 1

BECUSE IS NOMALY EASY FOR ME WHEN I ADD

Answer 2

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

A. .8 * .7 = ?

B. .2 * ? = .18

Answer 3

Juan lives in a large city and commutes to work daily by subway or by taxi. He takes the subway 80% of the time because it costs less, and he takes a taxi the other 20% of the time. When taking the subway, he arrives at work on time 70% of the time, whereas he makes it on time 90% of the time when traveling by taxi.