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Individual Discrete And Continuous Series In Statistics Pdf

individual discrete and continuous series in statistics pdf

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Sign in. Data Types are an important concept of statistics, which needs to be understood, to correctly apply statistical measurements to your data and therefore to correctly conclude certain assumptions about it. This blog post will introduce you to the different data types you need to know, to do proper exploratory data analysis EDA , which is one of the most underestimated parts of a machine learning project.

Difference Between Discrete and Continuous Data

The classification of data as a frequency distribution has an inherent shortcoming. While it summarises the raw data making it concise and comprehensible, it does not show the details that are found in raw data. There is a loss of information in classifying raw data though much is gained by summarising it as a classified data. Once the data are grouped into classes, an individual observation has no significance in further statistical calculations. For example : the class 20—30 contains 6 obervations : 25, 25, 20, 22, 25 and So when these data are grouped as a class 20—30 in the frequency distribution,the latter provides only the number of records in that class i. All values in this class are assumed to be equal to the middle value of teh class interval or class mark i.

Earn a free Open University digital badge if you complete this course, to display and share your achievement. Anyone can learn for free on OpenLearn, but signing-up will give you access to your personal learning profile and record of achievements that you earn while you study. Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available. Discrete data is information that can only take certain values.

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There are several kinds of mean in mathematics , especially in statistics :. For a data set , the arithmetic mean , also known as average or arithmetic average, is a central value of a finite set of numbers: specifically, the sum of the values divided by the number of values. The arithmetic mean of a set of numbers x 1 , x 2 , In probability and statistics , the population mean , or expected value, is a measure of the central tendency either of a probability distribution or of a random variable characterized by that distribution. Not every probability distribution has a defined mean see the Cauchy distribution for an example. Moreover, the mean can be infinite for some distributions. For a finite population, the population mean of a property is equal to the arithmetic mean of the given property, while considering every member of the population.

In statistics, data is defined as the facts and figures collected together for the purpose of analysis. It is divided into two broad categories, qualitative data, and quantitative data. Further, the qualitative data is cannot be measured in terms of numbers and it is sub-divided into nominal and ordinal data. On the other hand, quantitative data is one that contains numerical values and uses range. It is sub-classified as discrete and continuous data. Discrete data contains finite values that have nothing in-between.

We shall continue our discussion on frequency distributions in this article by moving on to Frequency Distributions of Discrete and Continuous Variables. Table No. For a continuous variable if we take a class for each distinct value of the variable, the number of classes will become unduly large, thus defeating the purpose of tabulation. In fact, since a continuous variable can assume an infinite number of values within its range of variation, the classification or sub-division of such data is necessarily artificial. Some guidelines that should be followed while dividing continuous data into classes are as follows:. Let us consider the following example regarding daily maximum temperatures in in a city for 50 days. Class Interval: The whole range of variable values is classified in some groups in the form of intervals.

individual discrete and continuous series in statistics pdf

Statistical Series. Individual Series. Frequency Series. Raw data. Individual series. Discrete Series. Continuous series. Inclusive series. Exclusive series.


Discrete vs continuous data

Data Types in Statistics

Around this value, there is high concentration of the values. It is neither the central value nor the total sum of series which makes any effect on it. Every distribution cannot have a unique value of Mode.

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Statistics - Standard Deviation of Continuous Data Series

5 Comments

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  2. Isidre M.

    02.05.2021 at 20:50
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    The similarity is that both of them are the two types of quantitative data also called numerical data.

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    02.05.2021 at 23:27
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