Final answer:
Using the product rule, the percentage chance of a male with type B blood, brown hair, and wearing glasses occurring in the population is calculated by multiplying the probabilities of each characteristic and is approximately 2.2260%.
Step-by-step explanation:
To calculate the percentage chance of a combination occurring in the population using the product rule, you multiply the individual probability percentages of each characteristic. This specific combination includes being male (50%), having type B blood (12%), brown hair (65%), and wearing glasses (57%). To convert the probabilities to a decimal form suitable for the product rule, you divide each percentage by 100.
Step 1: Convert each percentage to a decimal.
Male: 50% = 0.50
Type B blood: 12% = 0.12
Brown hair: 65% = 0.65
Wearing glasses: 57% = 0.57
Step 2: Multiply these probabilities together.
0.50 (male) × 0.12 (type B blood) × 0.65 (brown hair) × 0.57 (wearing glasses) = 0.02226
Step 3: Convert the decimal back to a percentage and round to four decimal places.
0.02226 × 100 = 2.226%
The final probability, rounded to four decimal places, is approximately 2.2260%.