The first and the last options
There would be about 1,283,792 scores below 640.
The 87th percentile means that 87% of the scores are below 640. All we need to do is multiply the total number of scores by 0.87 and we will have the number below 640.
Well, you wrote a list of 10 numbers, and
you called the list "Their answers".
If their answers are written as a list of 10 numbers,
and if there's no hanky panky going on that you're
not telling us, then the 10 answers came from
asking 10 students.
Answer:
you can you can do it! but I don't know
You just have to reflect it over the blue line, so if one point is 2 squares from the blue line then you will make it 2 squares away on the other side of the blue line. The y point will stay the same so they will be the same height