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# Probability homework question help??

Fri 20 Apr, 2012 08:13 pm
Can someone help me figure out these questions on my homework?? how do I work them out??

4. Determine whether the following is a probability distribution. If not, identify the requirement that is not met.
X 0 1 2 3 4 5
P(x) 0.243 0.167 0.213 0.149 0.232 0.164

5. The Police Department reports that the probabilities that 0, 1, 2, 3 and 4 car thefts will be reported in any given day are 0.091, 0.218, 0.261, 0.209 and 0.125, respectively. Determine if this is a probability distribution. If not, identify the requirement that is not satisfied.
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markr

1
Fri 20 Apr, 2012 09:36 pm
@mihanni21 ,
What must the sum of the probabilities equal?
mihanni21

1
Mon 23 Apr, 2012 11:51 am
@markr,
Im not sure, thats all the problem gives??
markr

1
Mon 23 Apr, 2012 03:17 pm
@mihanni21 ,
Let me rephrase that:
For it to be a probability distribution, what must the sum of the probabilities be?
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