One determinant is what the data will be used for, whether they need to be combined with other data for further analyses. If, for example, you want to study human mortality, you may want to use the same class sizes as for population statistics - which are usually 5-year age bands. That will enable you to calculate deaths rates. However, you may additionally wish to have a band for "less than 1 year" and "1 to 5 years" to allow you to study infant mortality in greater detail. At the other end, you may wish to group together "90 and above".
If there are no such constraints, you should divide up the range of values into 6-10 classes. Ideally, no class should have very few (<5%) observations. If there are, then combine adjoining classes - there is no requirement for the class size to be the same across the whole range.
One determinant is what the data will be used for, whether they need to be combined with other data for further analyses. If, for example, you want to study human mortality, you may want to use the same class sizes as for population statistics - which are usually 5-year age bands. That will enable you to calculate deaths rates. However, you may additionally wish to have a band for "less than 1 year" and "1 to 5 years" to allow you to study infant mortality in greater detail. At the other end, you may wish to group together "90 and above".
If there are no such constraints, you should divide up the range of values into 6-10 classes. Ideally, no class should have very few (<5%) observations. If there are, then combine adjoining classes - there is no requirement for the class size to be the same across the whole range.
One determinant is what the data will be used for, whether they need to be combined with other data for further analyses. If, for example, you want to study human mortality, you may want to use the same class sizes as for population statistics - which are usually 5-year age bands. That will enable you to calculate deaths rates. However, you may additionally wish to have a band for "less than 1 year" and "1 to 5 years" to allow you to study infant mortality in greater detail. At the other end, you may wish to group together "90 and above".
If there are no such constraints, you should divide up the range of values into 6-10 classes. Ideally, no class should have very few (<5%) observations. If there are, then combine adjoining classes - there is no requirement for the class size to be the same across the whole range.
One determinant is what the data will be used for, whether they need to be combined with other data for further analyses. If, for example, you want to study human mortality, you may want to use the same class sizes as for population statistics - which are usually 5-year age bands. That will enable you to calculate deaths rates. However, you may additionally wish to have a band for "less than 1 year" and "1 to 5 years" to allow you to study infant mortality in greater detail. At the other end, you may wish to group together "90 and above".
If there are no such constraints, you should divide up the range of values into 6-10 classes. Ideally, no class should have very few (<5%) observations. If there are, then combine adjoining classes - there is no requirement for the class size to be the same across the whole range.
One determinant is what the data will be used for, whether they need to be combined with other data for further analyses. If, for example, you want to study human mortality, you may want to use the same class sizes as for population statistics - which are usually 5-year age bands. That will enable you to calculate deaths rates. However, you may additionally wish to have a band for "less than 1 year" and "1 to 5 years" to allow you to study infant mortality in greater detail. At the other end, you may wish to group together "90 and above".
If there are no such constraints, you should divide up the range of values into 6-10 classes. Ideally, no class should have very few (<5%) observations. If there are, then combine adjoining classes - there is no requirement for the class size to be the same across the whole range.
Probability is the theoretical basis that underpins statistics.
Probability is related to statistics in a direct manner. When one is doing a research for statistics, probability has to be used especially in sampling a small region.
The difference between any two consecutive lower (or upper) class limits it the class width.
rthetj
Einstien
n
25-30 in a class in statistics
Statistics is based on the theoretical foundation of probability.
Probability is the theoretical basis that underpins statistics.
One of the main subjects that is covered in a mathematical statistics class is probability. Another of the main subjects that is covered is making predictions based on trends.
Probability is related to statistics in a direct manner. When one is doing a research for statistics, probability has to be used especially in sampling a small region.
Statistics is based on probability theory so each and every development in statistics used probability theory.
The difference between any two consecutive lower (or upper) class limits it the class width.
rthetj
Einstien
Probability/ Statistics
Statistics is the study of how probable an observed event is under a set of assumptions about the underlying probability distribution.