1.How many elements (numbers) are in the matrix that represents a PNG file with 100 pixels height and 50 pixels width?

2.What are the tokens of the following review: "Awesome movie with great actors"

3.When clustering 100 points (observations) the inertia of using 50 clusters will be half the inertia of using 1 cluster. Is this statement true or false?Why?

4.You have a data sample that consists of 75 points.

a.For how many clusters will the inertia be equal to 0?

b.How will duplicates (points with identical coordinates) affect the number you gave in part a. ?