Answer
$Mean=52.5$ thousand dollars.
$Median=52.5$ thousand dollars.
$Mode=52.5$ thousand dollars.
Each of them increased by $2500 (2.5 thousand dollars).
Work Step by Step
The salaries plus the bonuses, in thousands of dollars, in ascending order:
32.5, 32.5, 47.5, 52.5, 52.5, 52.5, 57.5, 57.5, 62.5, 77.5
$Mean=\frac{32.5+32.5+47.5+52.+52.5+52.5+57.5+57.5+62.5+77.5}{10}=52.5$
$Median=\frac{52.5+52.5}{2}=52.5$. The mean between the fifth and the sixth values.
$Mode=52.5$. The highest frequency.
