Respuesta :
Use the cumulative frequencies to figure out what the individual frequencies would be. Check out the attached image for the table of x values with their corresponding frequency (f) values. Note how the partial sums add up to the cumulative frequency values.
Once you know the frequency f values, multiply each x and f pair together in each row. The column labeled "x*f" represents each product. Afterward, add up everything in the x*f column to get the final answer 6.8
For the given cumulative frequency table, mean is 6.8
Cumulative frequency table shown below,
Value (X) Frequency (f) cumulative frequency X*f
2 0.05 0.05 0.1
4 0.35 0.4 1.4
6 0.05 0.45 0.3
8 0.25 0.70 2
10 0.3 1.00 3
Sum = 6.8
In cumulative frequency table , mean is the sum of table of, multiplication of value (X) and frequency (f).
Mean = ∑ X*f = 6.8
Therefore, mean [tex]\mu=6.8[/tex]
Learn more about mean here :
https://brainly.com/question/18060320
