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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.
A shop sells two brands of tea: Brand A and Brand B. The cost price of 1 kg of Brand A is ₹400, and Brand B is ₹300. The shopkeeper sells 10 kg of B...
The ratio of cost price and selling price of a shirt is 3:4 respectively. The shirt was marked up by 35% above its cost price, and sold after giving Rs....
A purchased an article for Rs 1560. She sold the article at 10% profit. She then added Rs 325 to the amount received and purchased a purse such t...
Pankaj purchased a machine for Rs. 79,000 and spent Rs. 4000 on repair and Rs. 3000 on transport and sold it with 25% profit. At what price did he sell ...
Matthew sells Chocolates in the packs of 6 chocolates, 12 chocolates, 18 chocolates and 24 chocolates etc, but the rate is necessarily uniform. One day...
A shopkeeper sells a luxury watch at a markup price, which is (100/3)% above its cost price. Had he purchased the watch for Rs. 300 more and sold it aft...
A shopkeeper sells rice at 10% profit and uses weight 30% less than the actual measure. His gain percent is
After applying a discount of Rs. 120 on an item, it was sold at a loss of 20%. If the ratio of the item's marked price to its selling price is 3:2, by w...
The purchasing price of 275 articles is equal to the selling price of 250 articles. Find the profit/loss%.
A shopkeeper marked an article 40% above its cost price and made a profit of Rs. 80 when he sold the article after giving a discount of 25%. Find the pr...
