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The pandas library is the go-to tool for data manipulation and cleaning in Python. It provides powerful, flexible data structures like DataFrames and Series that make handling structured data (such as tables and spreadsheets) very efficient. Pandas allows you to easily manipulate, clean, and preprocess data by offering features like handling missing values, merging datasets, filtering data, and performing group-by operations. It's a vital tool in data analysis and is widely used alongside other libraries like NumPy for numerical computations and Matplotlib/Seaborn for visualization. The other options are incorrect because: • Option 1 (NumPy) is primarily used for numerical operations and is excellent for working with arrays, but it does not offer data manipulation functions specific to tables or datasets. • Option 3 (Matplotlib) is used for data visualization, not data manipulation. • Option 4 (Seaborn) is a statistical visualization library built on top of Matplotlib, useful for creating beautiful plots, but not focused on data cleaning. • Option 5 (Scikit-learn) is a machine learning library that focuses on model building and not data manipulation.
x, y and z are real numbers. If x3 + y3 + z3 = 13,x + y + z = 1 and xyz = 1, then what is the value of xy + yz + zx?...
If x1x2x3 = 4(4 + x1 + x2 + x3), then what is the value of [1/(2 + x1)] + [1/(2 + x2)] + [1/(2 + x3)]?
If (x - 1/x)2 = 3, then the value of x6 + 1/x6 equals
If a + b + c = 0 then the value of (1/(a+b)(b+c)) + (1/(b+c)(c+a)) + (1/(c+a)(a+b)) is
There are 6 blue pens, 5 black pens and 4 green pens in a bag. Three pens are chosen randomly.
Quantity I – The probability of their bein...
If a3 = 117 + b3 and a = 3 + b, then the value of a + b is:
10 women and 12 men complete a certain piece of work in 30 days, if each women takes thrice the time taken by a man to finish the work.
Quantity...
If 3x + 5y + 7z = 49 and 9x + 8y + 21z = 126, then what is the value of y?
The expression of (cot θ + cosec θ −1) / (cot θ − cosec θ+1) is equal to
If (a + b)/c = 6/5 and (b + c)/a = 9/2, then what is the value of (a + c)/b?