Attempt History
Attempt Time Score
LATEST 33 minutes 100 out of 100
Score for this quiz: 100 out of 100
Submitted Jun 19 at 11:10pm
This attempt took 33 minutes.
Question 1 pts
There are 5 random people in a room. What is the probability
that none of them share the same birthday? (Assume 365 days
are equally likely.)
0.901
0.943
0.962
Correct! 0.973
0.989
Question 2 pts
, Consider a family that has three children. Assume that
, and that the
genders of the three kids are independent. What is the
probability that all three kids are boys given that we know at
least two of them are boys?
Correct!
Question 3 pts
TRUE or FALSE? Randomly select one card from a standard
deck of 52 cards. Suppose we define the event to be that the
selected card is a Diamond, and the event is that the
selected card is a 4. Then and are independent.
Note: A standard deck of playing cards contains a total of 52
cards of 4 types: 13 each of Spades, Clubs, Hearts, and
Diamonds.
Correct!
True
False
, Question 4 pts
TRUE or FALSE? The function for
is a valid p.d.f.
Correct! True
False
Question 5 pts
If the random variable X has p.d.f. , for
, what is the distribution of the slightly nasty random variable
?
Correct! Uniform
Gamma
Exponential
Normal
Weibull
Question 6 pts
Consider the discrete random variable such that