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Universe or Population
The word universe as used in statistics denotes the aggregate from which a sample is to be taken. According to Simpson and Kafka, a universe or population may be defined as an aggregate of items possessing a common trait or traits M Hamburg has defined it as, the universe or population consists of the total collection of items or elements that fall within the scope of statistical investigation
In short aggregate of all items falling within the scope of inquiry is called universe. The scope of the universe depends upon the definition, object and available resources for the investigation, for example if we want to study about the wages of the workers of a factory, all the workers taken together shall be called in universe and each worker, an unit or an element. Similarly if in the year 1998 there are 2,00,000 students in Rajasthan university and a survey is required to be made about the employment position of the students, the total students 2,00,000 is the universe and each student of the universe is called a unit or an element.
Advantages By definition, mode is the most typical or representative value of a distribution. Hence, when we talk of modal wage, modal size of shoe or modal size of family i
i am new to stata and i am trying to figure out how to calculate expected growth of sales tax revenue as well as average growth rate of sales tax revenue in stata. I have a dataset
ogives graph
the two regrassion line will pass through the point (x,y)
(a) Average rainfall during the month of January is found to be 58 mm. A Class A pan evaporation recorded an average of 8.12 mm/day near an irrigation reservoir. The average
Correlation The correlation is commonly used and a useful statistic used to describe the degree of the relationships between two or more variables. Pearson's correlation refle
Poisson Distribution The poisson Distribution was discovered by French mathematician simon denis poisson. It is a discrete probability distribution. Meaning : In bi
Question: (a) A normal distribution is thought to have a mean of 50. A random sample of 100 gave a mean of 52.6 and a standard deviation of 14.5. A significance test was carri
Show how the Normal bin width rule can be modi ed if f is skewed or kurtotic. Examine the effect of bimodality. Compare your rules to Doane's (1976) extensions of Sturges' rule.
case study in heat power engineering
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