What is the primary purpose of a scikit-learn Pipeline?

In PCA(0.95), the argument 0.95 tells PCA to:

What is the resulting 2 x 2 matrix of x @ y?

Which of the following best describes a key advantage of using Selenium over the requests module when scraping a webpage?

Consider a selenium driver(driver) in the following html code: Welcome to this lovely website Please login   Which of the following sequencies would send USERNAME to the username input box?  

The relationship in linear regression is often written as y=Xc+b

What shape would be produced by the following code? from shapely import Polygon shape1 = Polygon([(0, 0), (0, 1), (1, 1), (1, 0)]) shape2 = Polygon([(1, 1), (2, 1), (2, 2), (1, 2)]) shape1.difference(shape2)

Which of the following methods is used to save a Matplotlib figure into an in-memory file object for response in a Flask app?   Assume that f is an io.BytesIO() object

What will be the result of visiting http://localhost:5000/hello?name=Alice in the browser given the following Flask app?   from flask import Flask, request app = Flask(__name__) @app.route(‘/hello’) def hello(): name = request.args.get(‘name’, ‘World’) return f”Hello, {name}!” if __name__ == ‘__main__’: app.run()

Which of the following best explains the meaning of the ? and & in a URL like: http://localhost:5000/search?term=books&limit=10?