Which percentage of the population is estimated to have arches in their fingerprints?

The correct answer indicates that roughly 5% of the population is estimated to have arches in their fingerprints. This percentage reflects the rarity of arch patterns compared to other types, such as loops and whorls. Fingerprint classifications typically segment patterns into categories, and arches are one of the least common among these. In fact, research in the field of dermatoglyphics—the study of fingerprint patterns—shows that loops make up about 60-70% of fingerprints, whorls around 25-35%, and arches only comprise a small fraction.

Thus, the estimate of 5% effectively highlights just how uncommon arches are, making it a noteworthy distinguishing feature in forensic science for identifying individuals. This understanding aids forensic investigators in analyzing crime scene evidence and determining the significance of any identifiable fingerprint patterns discovered.