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Q3] The duration of COVID-19's disease for many patients ranges from 5 to 20 days until...

Q3] The duration of COVID-19's disease for many patients ranges from 5 to 20 days until death; the average is 7 days with a standard deviation of 3 days. The hospital randomly chose the medical reports of 20 dead COVID-19's patients from the database and recording the average duration. Find the following probabilities?
1-The average of COVID-19's duration is less than 6 days.
2-The average duration of COVID-19' lies within 2 days for the population mean u=7.
3-The average of COVID-19's duration exceeds days.

Q3] The duration of COVID-19's disease for many patients ranges from 5 to 20 days until death; the average is 7 days with a standard deviation of 3 days. The hospital randomly chose the medical reports of 20 dead COVID-19's patients from the database and recording the average duration. Find the following probabilities?
1-The average of COVID-19's duration is less than 6 days.
2- The average duration of COVID-19' lies within 2 days for the population mean u=7.
3-The average of COVID-19's duration exceeds 6 days.
Math   Statistics-And-Probability   
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