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What percent of data falls between 1 Standard deviation below and 2 stand deviations above the mean?
The answer will depend on what the distribution is. Non-statisticians often assum that the variable that they are interested in follows the Standard Normal distribution. This assumption must be justified. If that is the case then the answer is 81.9%
What proportion of a normal distribution falls above a z-score of 1.16?
Pr(Z > 1.16) = 0.123
The value below which 75 percent of the data falls is the definition for what in Six Sigma?
THe 75th percentile
What percent of a normal population is within 2 standard deviations of the mean?
In a normal distribution, approximately 95% of the population falls within 2 standard deviations of the mean. This is known as the 95% rule or the empirical rule. The empirical rule states that within one standard deviation of the mean, about 68% of the population falls, and within two standard deviations, about 95% of the population falls.
Why is the standard deviation one?
The standard deviation provides in indication of what proportion of the entire distribution of the sample falls within a certain distance from the mean or average for that sample. If your data falls on a normal (or bell shaped) distribution, a SD of 1 indicates that about 68% of your data points (scores or whatever else) fall within 1 point (plus or minus) of the average (mean) of the data, and 95% fall within 2 points.
What percent of data falls between 1 Standard deviation below and 2 stand deviations above the mean?
The answer will depend on what the distribution is. Non-statisticians often assum that the variable that they are interested in follows the Standard Normal distribution. This assumption must be justified. If that is the case then the answer is 81.9%
What percentage is the second distribution sextile of a normal bell curve?
By definition, the 1st 6-tile is the point below which 1/6 of the population falls (irrespective of which distribution is involved). The 2nd 6-tile is the point below which 2/6 of the population falls. This is 100 * 1/3 ~ 33.3% of the population.
What proportion of a normal distribution falls between z 1.16 and z 1.16?
0% of a normal (of any) distribution falls between z 1.16 and z 1.16. 1.16 - 1.16 = 0.
What proportion of a normal distribution falls above a z-score of 2.10?
It is 0.017864
What percentage of the area of a normal standard distribution falls between z and z?
Zero.
What percentage of the area of a normal standard distribution falls between z1 and z -1?
2
What proportion of a normal distribution falls above a z-score of 1.16?
Pr(Z > 1.16) = 0.123
What is lymphopenia?
A condition in which the number of lymphocytes falls below normal levels.
What percentage of the area of a normal standard distribution falls between z-1 and z -0.65?
-0.35
What proportion of the normal curve falls below a z score of 2.58?
Approx 0.995
What exact percent falls the normal curve falls below at Z score of -2.00?
Although I cannot prove it, I doubt that there is a nice closed-form expression for this quantity; it's probably not a rational number. It's value is approximately 0.0227501319482. (Using Python code.)
The value below which 75 percent of the data falls is the definition for what in Six Sigma?
THe 75th percentile
