is a method of calculating dissimilarity between clusters by calculating the distance between the centroids of the two clusters. a. Single linkage b. Complete linkage c. Average linkage d. Centroid linkage

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Hashtags serve to identify the topic of a given tweet true false

What is a loop? a. a collection of function definitions at the top of a program b. a line of code that defines a variable and assigns it a value c. a program that opens the turtle graphics window d. a block of code that repeats a specific number of times