Answer
$90$% of job applicants have a high-school diploma.
Work Step by Step
The total amount of people in the table are $54+27+5+4=90$.
The number of people that have a diploma $54+27=81$.
Use the formula $P(event)$=$\dfrac{chanceof event happening}{totalnumber}$:
$P(has$ $diploma)$= $\dfrac{81}{90}$ $\approx$ $0.9$ = $90$%
Only $90$% of the job applicants have a high school diploma.
