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Jimmy P.

Statistics, Data Science, Programming, Mathematics, Analytics

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Basic Math

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Question:

What is pi? (22/7 =3.14)

Jimmy P.

Answer:

Pi is basically the ratio of circumference of a circle to its diameter. It is a constant having value of 22/7 or 3.14159... Hence, if we find the ratio of circumference to diameter of circle of any size, we get a constant value of 22/7.

Statistics

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Question:

What do you mean by descriptive statistics and regression analysis?

Jimmy P.

Answer:

Descriptive statistics is the summary of the properties of data which is done in terms of measure of central tendency, spread or variance so as to get general idea about distribution of data or general pattern of data. It can represent the whole data set or a sample of it depending upon situations. example, finding mean( average) , median(mid point), Range ( maximum -minimum), Variance (or standard deviation) , etc of a data. Regression Analysis is a statistical process to estimate the relationship between two variables. The relationship can be linear or of a higher degree. Regression analysis helps in finding the affect of change of one variable(independent variable) on the other variable (dependent variable). example, for a given data having information related to health,we can find relationship between eye sight and age using regression analysis to find how exactly change in age affects eye sight.

Data Science

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Question:

What exactly is Data Science?

Jimmy P.

Answer:

Data science is a study/science of data, which helps in understanding and analyzing the data by means of statistics ,data analysis and information systems. It includes all the processes related to data, from extracting to building predictive models using data and understanding machine learning. The basic aim is to extract out all the relevant information from a raw, futile data set or piece of information using various techniques which may involve mathematics, precisely Statistics.

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