We are given a set of data depicting the number of books read by students.
We are required to find the mode of the data.
In order to find the mode, we simply need to count each unique number and know how many times each number occurs.
The unique number with the largest frequency of occurence is the mode of the data.
The data given is:

We will represent each count for the unique numbers with a frequency table showing each unique number and the number of times it occurs.
This table is done below:
Answer:
I didn't know I am soooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Answer:

Step-by-step explanation:
The error percentage is a measure of how inaccurate a measurement is, standardized based on the size of the measurement. It can be easily calculated using the following formula:

Where:

Therefore, according to the data provided by the problem:

The percentage error is:

421 because 400 plus 15 plus 6 is 421