Discrete Probabilty Distribution
Discrete Probabilty Distribution
I need the following calculated and answered in an Excel Spreadsheet
1:
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.
| Admissions | Probability |
| 1,010 | 0.6 |
| 1,380 | 0.3 |
| 1,600 | 0.1 |
| 1. |
What is the expected number of admissions for the fall semester? |
| Expected number of admissions |
| 2. |
Compute the variance and the standard deviation of the number of admissions. (Round your standard deviation to 2 decimal places.) |
Variance
Standard deviation
2: It is reported that 22% of American households use a cell phone exclusively for their telephone service. In a sample of seventeen households, find the probability that:
| a. |
No household uses a cell phone as their exclusive telephone service. (Round your answer to 4 decimal places.) |
| Probability |
| b. |
Exactly 10 households exclusively use a cell phone for telephone service. (Round your answer to 4 decimal places.) |
| Probability |
| c. |
Find the mean number of households exclusively using cell phones. (Round your answer to 4 decimal places.) |
Mean
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