Some values of a function and its 3-unit moving average are given. Supply the missing information:
x
1
2
3
4
5
6
7
r( x )
2
3
?
14
?
4
20
average
undefined
undefined
5
?
11
?
?
?
A. ?
| x | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| r(x) | 2 | 3 | 10 | 14 | 9 | 4 | 20 |
| average | undefined | undefined | 5 | 9 | 11 | 9 | 11 |
B. ?
| x | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| r(x) | 2 | 3 | 10 | 14 | 9 | 4 | 20 |
| average | undefined | undefined | 5 | 9 | 11 | 9 | 11 |
C. ?
| x | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| r(x) | 2 | 3 | 10 | 14 | 9 | 4 | 20 |
| average | undefined | undefined | 5 | 9 | 11 | 12 | 14 |
Answer: B
Mathematics
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