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Data

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Before we begin our journey with Data Analysis , there is the big question in our mind; What’re Data or What do mean by Data ? Data are measurement or observation that are collected as a source of information such as,The number of people living in Bangalore , the number of patients admitted in an emergency case , the value of sales of the particular product , a number of matches hold on Bangalore cricket stadium. There is some terminology on Data : Information : result/fact of processed data which leads to a solution of a particular problem,ex : here is 20 cricket matched played on Bangalore stadium in that India won 15 matches and also won the world cup in this year. In short , we call it data is unprocessed data and the information is cleaned of data which help us  to provide an answer to particular questions. A Data Unit is one entity ( such as a person or business ) in the population being studied about what data are collected. ...
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Histogram

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General Idea behind a histogram is to divide the dataset into groups of equal length , Which allows us to see the patterns in the data instead of details information , we would get from what is basically a list of numbers. In the histogram of salaries above those groups are 24-32,32-40,...and so on. Once the group has been chosen , the frequency of each group is determined. The frequency is simply the number of data values that are in each group. Let's look at the very first group 24-32 , the bar goes up to 6 , means that this group has a frequency of 6 ; 6 employee have salary in between 24 and 32 , but 32 is not included. If we have list of all the salaries between 24 and 32 thousand , In otherwords , 6 people in this group made salary between $24000 and $32000. Note: - A group 24-32 , doesn't include the 32 thousand , that groups accept value from 24 thousand and 31 thousand but not 32. - detail conclusion , while we can say most of people in this group m...
Location: Southern Asia
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