The probability that a resident who has a master's degree is aged 40 or over is approximately 0.498
To find the probability that a resident who has a master's degree is aged 40 or over, we need to determine the number of residents who have a master's degree and are aged 40 or over, and divide it by the total number of residents with a master's degree.
From the table, we can see that there are 3,325 residents with a master's degree. Out of these, 721 residents are aged 40-49, and 936 residents are aged 50 and over.
To find the total number of residents with a master's degree who are aged 40 or over, we add these two numbers together:
721 + 936 = 1,657
Therefore, the probability that a resident who has a master's degree is aged 40 or over is:
1,657 / 3,325 = 0.498
Rounding this to the nearest thousandth, the probability is approximately 0.498.
So, the probability that a resident who has a master's degree is aged 40 or over is approximately 0.498.