10. A local music store records the number of CDs purchased by each patron over the course of one day, with the following result:

x	P(x)
0	0.25
1	0.40
2	0.20
3	0.10
4	0.05

Round all answers to two decimal places. Include the leading 0 in your answer if applicable.

11. Determine whether the following distributions represent a probability distribution. If not, identify any requirements that are not satisfied.

x	P(x)
5	-0.4
10	0.6
15	0.1
20	0.3
25	0.4

Select all statements below that are true.

Select 3 correct answer(s)

	The sum of the probabilities do NOT add up to 1.
	The given distribution is a probability distribution.
	The given distribution is NOT a probability distribution.
	The sum of the probabilities add up to 1.
	Some probabilities are NOT between 0 and 1.
	All probabilities are between 0 and 1.

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