People visiting video rental stores often rent more than one DVD
at a time. The probability distribution for DVD rentals per
customer at Video To Go is given in the table below. There is a
five-video limit per customer at this store, so nobody ever rents
more than five DVDs.
x
P(x)
0
0.05
1
0.46
2
0.24
3
4
0.07
5
0.04
a) Describe the random variable X in
words.
X is the number of times a single customer comes
into the store.
X is the number of DVDs a customer
rents.
X is the number of customers that come into
the store.
X is the number of total DVDs rented at the
store.
X is the number of DVDs a customer owns.
b) Find the probability that a customer rents three DVDs.
(Enter an exact number as an integer, fraction, or decimal.)
c) Find the probability that a customer rents at least four
DVDs. (Enter an exact number as an integer, fraction, or
decimal.)
d) Find the probability that a customer rents at most two
DVDs. (Enter an exact number as an integer, fraction, or
decimal.)