Please Help with these problems

rgeer

New member
Joined
Sep 14, 2005
Messages
32
1)My Book gives a situation:
Of 500 sweaters examined, 6 have irregular sleeves, 19 are discolored, and 133 have other flaws.

Then it asks:
Is this situation Theoretical or Empirical probability ?, and then explain the choice.

2)Which of the following could not represent a probability distribution for the random variable x? Choose one of the tables.

X P(x)
1 0.2
2 0.2
3 0.3
4 0.4

X P(x)
0 1/8
2 3/8
5 3/8
8 1/8

X P(x)
1 1/6
2 1/6
3 1/6
4 1/6
5 1/6
6 1/6

X P(x)
10 0.1
11 0.2
12 0.1
13 0.55
14 0.05





Thanks in advance,
Ryan
 

Gene

Senior Member
Joined
Oct 8, 2003
Messages
1,904
Empirical. Your book must have a definition.

Add the P(x)s. If the total is breater than 1, it is impossible.
 
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