1. ## help

3. (15 points / 3 points each) Wait time for a taxi outside Penn Station in New York City is uniformly distributed on the interval (0, 420) where the random variable X is given in seconds.

a. Classify this problem by type using the letter choices:
A. binomial probability problem, C. normal probability problem about a single X,
B. uniform probability problem, D. normal probability problem about a
E. none of the above.

b. What is the probability that you wait more than 3 minutes?

c. What is the probability that you wait less than 2 minutes?

d. What is your expected wait time?

e. 30% of the time you can expect to wait longer than how many seconds for a taxi?

2. Originally Posted by stewardt
3. (15 points / 3 points each) Wait time for a taxi outside Penn Station in New York City is uniformly distributed on the interval (0, 420) where the random variable X is given in seconds.

a. Classify this problem by type using the letter choices:
A. binomial probability problem, C. normal probability problem about a single X,
B. uniform probability problem, D. normal probability problem about a
E. none of the above.

Mr F says: B!!!

b. What is the probability that you wait more than 3 minutes?

c. What is the probability that you wait less than 2 minutes?

d. What is your expected wait time?

e. 30% of the time you can expect to wait longer than how many seconds for a taxi?

The others are just application of the rules and theorems. Where are you stuck?

3. Originally Posted by mr fantastic
The others are just application of the rules and theorems. Where are you stuck?
a)B
b).5714
c).2857
d)3.5
e)2.1

These are the answers I got for 3

4. Originally Posted by stewardt
a)B
b).5714
c).2857
d)3.5 Mr F says: Give the unit!
e)2.1 Mr F says: The question requires an answer in seconds, not minutes .....

These are the answers I got for 3
b) and c) probably should be expressed as exact fractions ....