What is machine learning

How could you categorize Machine learning

Describe:
Data
Data point
Data set

What problems with data do often occur in Machine learning.
How could they be solved.

Describe:
Min Max Scaling
Z- Score Normalization
Log transformation

Descirbe:
Clustering
Soft vs Hard clustering
K-means
K-means ++

Write down distance metrics:
L1 norm manhattan
L2 norm euclidian
Cos distance

Describe hierachical clustering
Agglomerative (bottom up)
Divisive ( top down)