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How many of the 100 scores are expected to be below 32.38 (two standard deviations above the mean)?
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How do you find two standard deviations above a mean?
It is mean + 2*standard deviation.
A z-score of plus 1.6 represents?
It is 1.6 standard deviations above the mean.
Is an IQ of 149 good for a 10 year old?
An IQ of 149 is very high for anyone. Depending on whether or not the IQ is based on 15 standard deviations or 16 standard deviations, this IQ will put you slightly above or below the highest 99.9% of the population (respectively). An IQ score is supposed to be independent of age, however people with very high IQ test scores as children often test at lower IQ test scores as adults.
How good is an IQ of 155?
Toward the higher end of 3 standard deviations above average.
What percent lies more than 3 standard deviations above the mean?
15/1000
How do you find two standard deviations above a mean?
It is mean + 2*standard deviation.
How many standard deviations above the mean is the 90th percentile?
It is 1.28
How do you find the three sigma limits?
This is 3 standard deviations above and below the mean.
A z-score of plus 1.6 represents?
It is 1.6 standard deviations above the mean.
Is an IQ of 149 good for a 10 year old?
An IQ of 149 is very high for anyone. Depending on whether or not the IQ is based on 15 standard deviations or 16 standard deviations, this IQ will put you slightly above or below the highest 99.9% of the population (respectively). An IQ score is supposed to be independent of age, however people with very high IQ test scores as children often test at lower IQ test scores as adults.
If a data point has a corresponding score of -1.5 then it is one and a half standard deviations above the mean value.?
If you are talking about the z-value of a point on the normal curve, then no, it is 1.5 standard deviations BELOW the mean.
How good is an IQ of 155?
Toward the higher end of 3 standard deviations above average.
What percent lies more than 3 standard deviations above the mean?
15/1000
What is 2 Standard Deviations above an average of .1407?
The answer depends on the value of the standard deviation. Without that information, the question cannot be answered.
How many standard deviations above and below the mean contains 99 percent of the population?
2.576 sd
A z-score of plus 1.6 represents a value which is how many standard deviations above the mean?
1
What would -2 standard deviation below the mean be?
It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.It would mean that the result was 2 standard deviations above the mean. Depending on the distribution of the variable, it may be possible to attach a probability to this, or more extreme, observations.
