Step-by-step explanation:
5160 In two trucks they have a 50 specimen , 10 , 20
We have the frequencies for each of the grades. We can estimate the number of students graded by adding all those frequencies. Let's call N the total number of grades:

We have then a total number of grades of 39.
The corresponding relative frequency for a grade is the ratio of the frequency to the total number of "samples", 39 in this case.
Then, for grade A, the relative frequency (RF) will be:

This will be the fraction of the total grades that are A. Represented as a percentage will be 10.26%, rounded to two decimal places.
Now, to complete the table we do the same for the other frequencies:
For grade B:

For grade C:

For grade D:

For grade F:
Answer:
Well..
Step-by-step explanation:
Do 23,882 by 11, then do the answer of that problem divided by 11 and so on
Answer:A
Step-by-step explanation: