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AMU MATH 302 Quiz 1 American Military University question 11

#1

Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. 
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. 
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. 

A DVD rental business determines that customers will rent X number of DVDs according to the following distribution:
Number of DVDs rented X
1
2
3
4
5
Probability P(X)
0.15
0.25
0.3
0.25
0.05

What is the mean number of DVDs that customers rent? Round your answer to one decimal place as necessary. For example, 4.5 would be a legitimate entry. 
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#2

(05-19-2016, 12:09 PM)hermoineraven Wrote:  Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. 
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values. 
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. 

A DVD rental business determines that customers will rent X number of DVDs according to the following distribution:
Number of DVDs rented X
1
2
3
4
5
Probability P(X)
0.15
0.25
0.3
0.25
0.05

What is the mean number of DVDs that customers rent? Round your answer to one decimal place as necessary. For example, 4.5 would be a legitimate entry. 

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