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How do you calculate an interquartile range with an even number of scores?
Wiki User
∙ 11y ago
If you have 2n scores, then
Q1 = (2n+1)/4
Q3 = 3*Q1
In both cases, depending on your level, you take the nearest integer to Q1 and Q3, or you interpolate. If you do not know what interpolate means then you are probably not yet at the necessary level!
and IQR = Q3 - Q1
Wiki User
∙ 11y ago
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What is the interquartile range of a number?
the IQR is the third quartile minus the first quartile.
What is considered measures of variabilty is it mean interquartile range or mean absolute deviation?
interquartile range or mean absolute deviation.
What is the name for the difference for the difference between the third quartile and first quartile in a five- number summary?
Interquartile range.
A sample consists of n equals 16 scores How many of the scores are used to calculate the range?
8
What is the difference between the range and the interquartile range?
Range = maximum - minimum Interquartile range = Value of 75th percentile - value of 25th percentile. The 75th percentile is the value such that 25% of the observations are bigger and 75% are smaller.
What is the interquartile range of the scores 72 93 84 59 97 65 76?
28
What is the interquartile range of 16171922232527363840404546?
what is the interquartile range of 16,17,19,22,23,25,27,36,38,40,40,45,46
Why is the interquartile range a more appropriate measure for spread than the range?
the interquartile range is not sensitive to outliers.
What is the interquartile range of a number?
the IQR is the third quartile minus the first quartile.
How do you find the semi-interquartile range with only the mean and standard deviation?
In general, you cannot. If the distribution can be assumed to be Gaussian [Normal] then you could use z-scores.
What is the meaing of interquartile range in math?
The interquartile range of a set of data is the difference between the upper quartile and lower quartile.
What is considered measures of variabilty is it mean interquartile range or mean absolute deviation?
interquartile range or mean absolute deviation.
Does a box plot represent an interquartile range?
If presents you with the upper and lower quartile range, although you have to do calculations in order to find the interquartile range, so no, it does not,
What does interquartile range mean?
The interquartile range is the upper quartile (75th percentile) minus (-) the lower percentile (75th percentile). The interquartile range uses 50% of the data. It is a measure of the "central tendency" just like the standard deviation. A small interquartile range means that most of the values lie close to each other.
What is unaffected by outliers?
interquartile range
Is it possible for interquartile range to be zero?
Yes, it is.
How do you find the interquartile range in a set of data?
how do you find the interquartile range of this data
