Question

use the venn diagram to the right, which shows the cardinality of each region, to answer the question below. considering sets a, b, and c, how many elements belong to exactly one of these sets? considering sets a, b, and c, there are \boxed{} elements that belong to exactly one of these sets.

Explanation:

Step1: Identify regions for exactly one set

Regions with elements in exactly one set: A only (5), B only (4), C only (8).

Step2: Sum these regions

Sum: \( 5 + 4 + 8 = 17 \).

Answer:

17