Which technique involves scaling features so that the lowest value is 0 and the highest is 1?

Get ready for the CertNexus Certified Data Science Practitioner Test. Practice with flashcards and multiple choice questions, each question has hints and explanations. Excel in your exam!

The technique that involves scaling features so that the lowest value is 0 and the highest is 1 is known as normalization. This process is often used in data preprocessing to bring different features into a similar scale. Normalization typically applies the formula:

[ \text{Normalized value} = \frac{(X - X_{min})}{(X_{max} - X_{min})} ]

Where ( X ) is the original value, ( X_{min} ) is the minimum value of the feature, and ( X_{max} ) is the maximum value of the feature. By applying this technique, you ensure that all the feature values are rescaled to fit within a range of 0 to 1, which can be particularly beneficial for algorithms that are sensitive to the scale of data, such as those based on Euclidean distance.

In contrast, standardization scales features to have a mean of 0 and a standard deviation of 1, which is not the same as normalizing the data to a range between 0 and 1. Encoding refers to converting categorical variables into a numerical format, which is unrelated to the scaling of feature values. The repetition of the term "normalization" may suggest a typ

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy