0
What percentage of calls are completed between 100 and 120 minutes with a mean time of 100 minutes for office calls with a standard deviation of 25 minutes?
Mean = 100
Standard Deviation = 25
(120 -100) / 25 = 0.80
th z value of .80 from the table = .2881
P(100-120) = 28.81%
What percentage of calls are completed in less than 60 minutes ?
(60 - 100) / 25 = - 1.6
from the table the z value is .4452
(one side), then : .5000 - .4452 = .0548
P(60) = 5.48%
What else can I help you with?
Percentage between 415 and 515 standard deviation 100 and mean is 515?
34.1% with the normal distribution.
Relation between mean and standard deviation?
Standard deviation is the variance from the mean of the data.
What Percent of population between 1 standard deviation below the mean and 2 standard deviations above mean?
In a normal distribution, approximately 68% of the population falls within one standard deviation of the mean, and about 95% falls within two standard deviations. Therefore, to find the percentage of the population between one standard deviation below the mean and two standard deviations above the mean, you would calculate 95% (within two standard deviations) minus 34% (the portion below one standard deviation), resulting in approximately 61% of the population.
What is the difference between standard deviation and mean?
The mean is the average value and the standard deviation is the variation from the mean value.
Difference between beta and standard deviation?
* * *
Does standard deviation have to be between 0 and 1?
Standard deviation doesn't have to be between 0 and 1.
What is the relationship between standard deviation and variance?
Standard deviation is the square root of the variance.
Percentage between 415 and 515 standard deviation 100 and mean is 515?
34.1% with the normal distribution.
Relation between mean and standard deviation?
Standard deviation is the variance from the mean of the data.
What is the difference between standard error of mean and standard deviation of means?
Standard error of the mean (SEM) and standard deviation of the mean is the same thing. However, standard deviation is not the same as the SEM. To obtain SEM from the standard deviation, divide the standard deviation by the square root of the sample size.
How do you apply standard deviation to normal curve?
The distance between the middle and the inflection point is the standard deviation.
What Percent of population between 1 standard deviation below the mean and 2 standard deviations above mean?
In a normal distribution, approximately 68% of the population falls within one standard deviation of the mean, and about 95% falls within two standard deviations. Therefore, to find the percentage of the population between one standard deviation below the mean and two standard deviations above the mean, you would calculate 95% (within two standard deviations) minus 34% (the portion below one standard deviation), resulting in approximately 61% of the population.
What is the relationship between standard deviation and variance for the same sample data?
The standard deviation is the square root of the variance.
What is the difference between standard deviation and mean?
The mean is the average value and the standard deviation is the variation from the mean value.
Difference between beta and standard deviation?
* * *
What percentage of the area falls below the mean?
The area between the mean and 1 standard deviation above or below the mean is about 0.3413 or 34.13%
What is the relationship between standard deviation and precision?
The more precise a result, the smaller will be the standard deviation of the data the result is based upon.
