Meaning: When values have different frequencies, we calculate the mean by multiplying each value (\(x\)) by its frequency (\(f\)).

Formula:

Here:

Given value

Frequency (how many times a value occurs)

Value multiplied by frequency

Sum or total

Step 1:Prepare the table.

x	f	fx
0	1	0
1	13	13
2	20	40
3	40	120
4	40	160
5	13	65
6	7	42
Total	134	440

Step 2: Find the total frequency.

Step 3: Find the total of fx.

Step 4: Apply the formula.

Final Answer: 3.28

Remember for exams:

1. Multiply each \(x\) by its frequency \(f\).
2. Add all frequencies.
3. Add all \(fx\) values.
4. Divide total \(fx\) by total frequency.