Asked by Mary
weekly take home pay for those 20 graduate teaching assistants from university z:
500.75, 217.43, 488.25, 405.78
485.46, 495.48, 370.75, 435.40
479.65, 482.56, 470.28, 489.90
382.50, 500.75, 465.32, 481.25
506.43, 225.50, 504.38, 179.25
1. what are the mean and standard deviation for this distribution of weekly take-home pay amounts?
2. what percentage of the pay amounts lie within 1 standard deviations of the mean?
3. what percentage of the pay amounts lie within 2 standard deviations of the mean?
4. what percentage of the pay amounts lie within 3 standard deviations of the mean?
5. what isthe range of the pay amounts?
500.75, 217.43, 488.25, 405.78
485.46, 495.48, 370.75, 435.40
479.65, 482.56, 470.28, 489.90
382.50, 500.75, 465.32, 481.25
506.43, 225.50, 504.38, 179.25
1. what are the mean and standard deviation for this distribution of weekly take-home pay amounts?
2. what percentage of the pay amounts lie within 1 standard deviations of the mean?
3. what percentage of the pay amounts lie within 2 standard deviations of the mean?
4. what percentage of the pay amounts lie within 3 standard deviations of the mean?
5. what isthe range of the pay amounts?
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