Question

Write the total number of class frequencies. If there are k attributes.

Answer 1

Answer:

it is answer in text book

Answer 2

Answer:

The total number of class frequencies is $^nC_k2^k$

Step-by-step explanation:

Attribute means a characteristic that can be marked to a particular class.

For each attribute, there is a positive and a negative case which means one case where the attribute is present and the other case where the attribute is not present.

A class with one attribute is said to be of first-order, with two attributes is second-order, with three attributes is third-order so with n attributes in order n.

For k attributes,

A class frequency of order k will contain k attributes.

The total number of class frequencies of order k is $^nC_k2^k$.