Question

how to find CF (cumulative frequency)
please tell in a discriptive form if possible...​

Answer 1

Step-by-step explanation:

Technically, a cumulative frequency distribution is the sum of the class and all classes below it in a frequency distribution. All that means is you’re adding up a value and all of the values that came before it.

Here’s a simple example: You get paid $250 for a week of work. The second week you get paid $300 and the third week, $350. Your cumulative amount for week 2 is $550 ($300 for week 2 and $250 for week 1). Your cumulative amount for week 3 is $900 ($350 for week 3, $300 for week 2 and $250 for week 1).

Cumulative frequency distributions can be summarized in a table.

What is a Cumulative Frequency Distribution?

This table shows the frequency of hair colors for a population sample. If you add up all of the frequencies for the ?, you get a total of 41:

15 + 10 + 16 = 41. You can also write this, equivalently, with summation notation: Σ f. The sigma (Σ) just means to “add them all up.”

Answer 2

Answer:

first arrange intervals in ascending order than follow these steps......

just add up

Step-by-step explanation:

final CF is f1+f2+f3+f4.........

NOTE-sbse phli CF sbse phli Frequency ke barabar hoti h

FIR ADD HOTI CHLI JAATI H