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What is the Z score equation?
Given a random variable X with mean M and standard deviation S, Z = (X - M)/S
Is a negative z score always an indicator that the raw score is below the mean?
Yes.z = (raw score - mean)/standard error.Since the standard error is positive, z < 0 => (raw score - mean) < 0 => raw score < mean.
What does a positive Z-score mean?
it means that the score is above the mean
How can you calculate z-score?
If a normally distributed random variable X has mean m and standard deviation s, then z = (X - m)/s
Calculate the z-score for a test score of 87 if the mean test score is 81.1 and standrd deviation is 11.06?
z score = (test score - mean score)/SD z score = (87-81.1)/11.06z score = 5.9/11.06z score = .533You can use a z-score chart to calculate the probability from there.
What is the z score for a given raw score?
Let your raw score be x and M the mean and S the standard deviation. The Z score for your specific x is Z=(x-M)/S So say your score is 80 (out of 100) and the mean is 70 and the standard deviation is 10. Then the z score for your 80 is: (80-70)/10=1 If on the other hand you got a 60, then the z score would be -1.
How z-score derive?
If a random variable X has a normal distribution with mean m and standard error s, then the z-score corresponding to the value X = x is (x - m)/s.
What does it mean if the Z score of a test is equal to 0?
If the Z Score of a test is equal to zero then the raw score of the test is equal to the mean. Z Score = (Raw Score - Mean Score) / Standard Deviation
What does it mean if s an an eleven year old girl gets an IQ score of 132?
She's a genious
What is the Z score equation?
Given a random variable X with mean M and standard deviation S, Z = (X - M)/S
Is a negative z score always an indicator that the raw score is below the mean?
Yes.z = (raw score - mean)/standard error.Since the standard error is positive, z < 0 => (raw score - mean) < 0 => raw score < mean.
Your MELD score is 18 what does that mean?
my meld score is 16. what does that mean?
What does a positive Z-score mean?
it means that the score is above the mean
What does s mean in baseball stats?
Strike In the box score an "s" denotes a sacrifice bunt. This results in an out for the batter, but the baserunner moves up a base.
How can you calculate z-score?
If a normally distributed random variable X has mean m and standard deviation s, then z = (X - m)/s
How do your work out z score?
If a random variable X has a Normal distribution with mean M and standard deviation S, then Z = (X - M)/S
Is it true any score with value less than the population mean will have a negative z-score?
Yes. If a score is below the mean, the z score will be negative.
