Contents
Which is an example of a measure of dispersion?
Range: It is simply the difference between the maximum value and the minimum value given in a data set. Example: 1, 3,5, 6, 7 => Range = 7 -1= 6 Variance: Deduct the mean from each data in the set then squaring each of them and adding each square and finally dividing them by the total no of values in the data set is the variance.
How is the stability of a dispersion determined?
Indeed, the stability of colloidal dispersions depends on many parameters (size, concentration, charges, rheology…). Techniques such as zeta potential testing, particle size determination, conductivity or rheology measurement provide useful but limited information to one parameter and do not characterize the overall stability of formulations
Why is a colloidal dispersion considered to be stable?
Colloidal stability relates to particle size change (e.g. aggregation or agglomeration). If particles are not subject to size variation, the dispersion is considered colloidally stable. Hence, colloidal stability depends on several types of interactions such as :
When to use the co-efficient of dispersion?
Co-efficient of Dispersion The coefficients of dispersion are calculated (along with the measure of dispersion) when two series are compared, that differ widely in their averages. The dispersion coefficient is also used when two series with different measurement units are compared. It is denoted as C.D.
Why is dispersion of data important in statistics?
This is because they play a direct role on the margin of error you’re working with. The greater the dispersion in a sample, the more space you’ll need to work within that margin. They can also help you figure out if your data is far from its central tendency.
Which is the best measure of central tendency and dispersion?
A box plot is an effective visual representation of both central tendency and dispersion. It simultaneously shows the 25th, 50th (median), and 75th percentile scores, along with the minimum and maximum scores. The “box” of the box plot shows the middle or “most typical” 50% of the values,…