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Does percentiles of a raw score differ from the meanof the raw score distribution?
Wiki User
∙ 14y ago
Yes.
Wiki User
∙ 14y ago
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In a distribution with a standard deviation of eight an individual score of 42 corresponds to a Z score of -0.5. What is the mean of this distribution?
The mean is 46.
What is the shape of a z-score distribution?
The standard normal distribution or the Gaussian distribution with mean 0 and variance 1.
For a normal distribution what z-score value separates the lowest 10 percent of the scores from the rest of the distribution?
-1.28
What is Z score normalization?
The z Score utility model transforms the distribution of pixel values into a standard normal distribution (z-score value). By this normalization the images of different individuals become more comparable.For more information on z-score, check this article:http://en.wikipedia.org/wiki/Standard_score
How do you use the z-score to determine a normal curve?
If the Z-Score corresponds to the standard deviation, then the distribution is "normal", or Gaussian.
How is the process of determining percentiles different if you were given a sample mean rather than individual raw score?
It is impossible to determine the percentiles if you are given only the sample mean since percentiles are a measure of the spread of the data; the mean gives no information on that.
Is 206 a good map test score in 4th grade?
It is a pretty good score. You will have to check with the state percentiles, but that's an average score. No worrying.
What do the percentiles on the psat score report mean?
how students compare with other psat test takers
In a distribution with a standard deviation of eight an individual score of 42 corresponds to a Z score of -0.5. What is the mean of this distribution?
The mean is 46.
What is the shape of a z-score distribution?
The standard normal distribution or the Gaussian distribution with mean 0 and variance 1.
Why is t score equal to z score in a normal distribution?
Because as the sample size increases the Student's t-distribution approaches the standard normal.
What happens to the distribution of the t-score as the sample size increases?
It approaches a normal distribution.
What is true if someone has a z score of zero?
Z score of 0 is the mean of the distribution.
What is the probability of obtaining a score from a distribution that would have a z score of -1.55 or smaller?
It is 0.0606
What is the z score for a score of 75 if the mean of the distribution is 85 and the standard deviation is the distribution is 5?
z = (75 - 85)/5 = -10/5 = -2
What percentage of a normal distribution is located in the tail beyond a z-score of z - 1.20?
11.51% of the distribution.
The median for any distribution corresponds to a z-score of?
1
