<jupyter_start><jupyter_text>Module-2 In this section we covered Types of data and variable What is Data? >Data is any information about something  e.g.,The examples of data are weights, prices, costs, numbers of items sold, employee names, product names, addresses, tax codes, registration marks etc. What is the Difference between Data and Information ?<jupyter_code>from IPython.display import Image
Image(filename="./Dinfo.jpg")<jupyter_output><empty_output><jupyter_text>What is Variable? >A variable represents one specific characteristic of the data or tells one specific information about the data under consideration.  Types of variable<jupyter_code>from IPython.display import Image
Image(filename="variable.jpg")<jupyter_output><empty_output><jupyter_text>What is Numeric Variable? >Numeric variables have values that describe a measurable quantity as a number, like 'how many' or 'how much'. Therefore numeric variables are quantitative variables. Numeric variable further devided into two categories namely :>>Continuous.Discrete. What is Continuous variable? >Continuous variables are those numeric variables which can take any value between a certian set of real values. Or You can say If a variable can take on any value between two specified values, it is called a continuous variable. What is Discrete variable? >Discrete variables are those numeric variables which are countable any take only whole numbers (i.e. integers) as value.OrYou can say If a variable can take on any value between two specified values, it is called a continuous variable; otherwise, it is called a discrete variable. What is Categorical Variable? >Categorical Variables are those which are like adjectives and express a feeling or a characteristic.Numeric variable further devided into two categories namely : >>Ordinal  Nominal What is Ordinal variable? >Ordinal variables are those Categorical Variables which can be arrenged in a logical order. What is Nominal variable? >Nominal variables are those Categorical Variables which can't be ranked based on their values. WHAT ARE INDEPENDENT AND DEPENDENT VARIABLES? What's an independent variable? >An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age. What's an dependent variable? >Just like an independent variable, a dependent variable is exactly what it sounds like. It is something that depends on other factors. For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before you took the test, or even how hungry you were when you took it. Difference between dependent and independent variable >The main key difference between these two A dependent variable is a variable whose variations depend on another variableusually the independent variable. on the other hand  An Independent variable is a variable whose variations do not depend on another variable. What is Structured data and unstructured data?  >Structured data is data that has been organized into a formatted repository, typically a database, so that its elements can be made addressable for more effective processing and analysis. Where as Unstructured data is data that doesn't fit in a spreadsheet with rows and columns. It isn't in a database. ... Examples of unstructured data includes things like video, audio or image files, as well as log files, sensor or social media posts. What is the difference between Structured data and unstructured data?   This is all about data and variable to ML. >Hope you liked it >>Thank You :D<jupyter_code><jupyter_output><empty_output>
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