Answer
$313,767$ students had a score of 16 or below.
$313,767$ students had a score of 25 or above.
Work Step by Step
According to (a): about 20% of students had a composite score of 16 or below. So: 20% of 1,568,835 is:
$0.20\times1,568,835=313,767$
First, let's find the percentage of students who had a composite score less than 25. It is height of the point above the 25, about 80%.
The students who had a composite score of 25 or above are those who did not have a composite score less than 25. So:
100% −80% =20%.
Now, 20% of 1,568,835 is: $0.20\times1,568,835=313,767$
