SOLUTION: What is the probability that an Amazon.com visitor will buy eight books, if we are given the following probabilities X P(x) 0 0.327 1 0.206 2 0.0

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Question 421359: What is the probability that an Amazon.com visitor will buy eight books, if we are given the following probabilities
X P(x)
0 0.327
1 0.206
2 0.07
3 0.097
4 0.028
5 0.022
6 0.01
7 0.24
Found 2 solutions by stanbon, Edwin McCravy:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
What is the probability that an Amazon.com visitor will buy eight books, if we are given the following probabilities
X P(x)
0 0.327
1 0.206
2 0.07
3 0.097
4 0.028
5 0.022
6 0.01
7 0.24
-----
Add the given probabilities and subtract the sum from 1 to
get the probability of buying 8 books.
----
Cheers,
Stan H.
Answer by Edwin McCravy(20086)   (Show Source): You can put this solution on YOUR website!
What is the probability that an Amazon.com visitor
will buy eight books, if we are given the following probabilities 


Let P(8 or more) = x

x        P(x)
0        0.327 
1        0.206	
2        0.07		
3        0.097
4        0.028
5        0.022
6        0.01
7        0.24
8 or more  x
--------------
         1.000

The sum of all probabilities must have sum 1

0.327+0.206+0.07+0.097+0.028+0.022+0.01+0.24+x = 1
                                           1+x = 1
                                             x = 0

So the probability of buying 8 or more is 0.

Edwin
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