Question

what is CF number in math​

Answer 1

In statistics, the frequency of the first-class interval is added to the frequency of the second class, and this sum is added to the third class and so on then, frequencies which are obtained this way are known as cumulative frequency (c.f.).

Answer 2

Answer:

• CF stands for cumulative frequency
• the total of a frequency and all frequencies so far in a frequency distribution
• it is the running total of frequency
• the last value will be always equal to the total of all the observation

Formula

$N = ∑fi.$