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Ruth is a computer consulting firm. The number of new client that they have obtained each month has ranged from 0 to 3. The number
Ruth is a computer consulting firm. The number of new client that they have obtained each month has ranged from 0 to 3. The number of new clients has the probability distribution that is show below.
| Number of new clients | Probability |
| 0 | 0.10 |
| 1 | 0.30 |
| 2 | 0.20 |
| 3 | 0.40 |
- Determine the expected value for the new clients.
- Calculate the standard deviation for this probability distribution
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