Question
Just looking for some math checking and if I am worng why Consider a sample with data values of 27, 25, 23, 15, 30, 33,
Just looking for some math checking and if I am worng why
Consider a sample with data values of 27, 25, 23, 15, 30, 33, 28, and 25. Compute the range, interquartile range, variance, and standard deviation (to a maximum of 2 decimals, if decimals are necessary).
Range
34
Interquartile range
3
Variance
25.19
Standard deviation
5.02
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The budgeting process for a midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Because the actual expenses are unknown, the following respective probabilities are assigned: 0.26, 0.17, 0.23, 0.15, and 0.19.
- Show the probability distribution for the expense forecast.
x f(x)
9 .26
10 .17
11 .23
12 .15
13 .19
What is the expected value of the expense forecast for the coming year (to 2 decimals)?
10.84
What is the variance of the expense forecast for the coming year (to 2 decimals)?
2.09
If income projections for the year are estimated at $12 million, how much profit does the college expect to make (report your answer in millions of dollars, to 2 decimals)?
1.16
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