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The following table is set up to calculate the standard deviation of a sample of 6 credit card balances (x)(). A negative balance indicates an
The following table is set up to calculate the standard deviation of a sample of 6 credit card balances (x)(). A negative balance indicates an overpayment.
- Fill in the missing values.
| Card | x | xx- | (xx)2(-)2 |
|---|---|---|---|
| 1 | 28 | 1225 | |
| 2 | 40 | 1600 | |
| 3 | 75 | 144 | |
| 4 | -66 | 4356 | |
| 5 | -69 | 4761 | |
| 6 | 181 | 118 | |
| Total | 378 |
- The sample standard deviation, s=
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Probability and Stochastic Processes A Friendly Introduction for Electrical and Computer Engineers
Authors: Roy D. Yates, David J. Goodman
3rd edition
1118324560, 978-1118324561
