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What proportion of a normal distribution falls between z 1.16 and z 1.16?
Wiki User
∙ 12y ago
0% of a normal (of any) distribution falls between z 1.16 and z 1.16. 1.16 - 1.16 = 0.
Wiki User
∙ 12y ago
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What proportion of a normal distribution falls above a z-score of 2.10?
It is 0.017864
What proportion of a normal distribution falls between z equals negative 1.16 and z equals positive 1.16?
1.16/z = -1.16/z * * * * * No! Pr(Z > 1.16) = 0.123 So Pr(-1.16 < Z < 1.16) = 1 - 2*0.123 = 1 - 0.246 = 0.754
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 is the percentage of the population under the standard distribution curve between the Z scores of negative 1.96 and positive 1.96?
95% of the area falls between Z = -1.96 & 1.96.
What area under the standard normal curve falls between the z value -1.5 and 2.5?
The area is 0.9270, approx.
What proportion of a normal distribution falls above a z-score of 2.10?
It is 0.017864
What proportion of a normal distribution falls above a z-score of 1.16?
Pr(Z > 1.16) = 0.123
What percent falls below the mean for normal distribution?
In a normal distribution half (50%) of the distribution falls below (to the left of) the mean.
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 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 proportion of a normal distribution falls between z equals negative 1.16 and z equals positive 1.16?
1.16/z = -1.16/z * * * * * No! Pr(Z > 1.16) = 0.123 So Pr(-1.16 < Z < 1.16) = 1 - 2*0.123 = 1 - 0.246 = 0.754
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 is the area within the normal curve between -1SD and plus 1 SD?
The area within the normal curve between -1 standard deviation (SD) and +1 SD is approximately 68%. This means that about 68% of the data falls within one standard deviation of the mean in a normal distribution.
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.
