Using the tree diagram (which is a probability tool), the percentage of all graduates who plan to enter the workforce and reside locally is 12%.
What is the percentage?
The percentage refers to the proportion or ratio of a number or value to another.
Percentages are computed by dividing the numerator (the smaller number) by the denominator (the whole number) and multiplying the result by 100.
The percentage of high school graduates who enter college = 70%
The percentage of high school graduates who enter the workforce = 30% (1 - 70%).
The percentage of high school graduates who enter the workforce, moving out of state = 60%
The percentage of high school graduates who enter the workforce but reside locally = 40% (1 - 60%).
The percentage of high school graduates working and residing locally = 12% (30% x 40%).
Thus, the tree diagram shows that the percentage of high school graduates choosing to work and reside locally is 12%.