Fifty percent of neuroblastomas appear prior to which age?

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Multiple Choice

Fifty percent of neuroblastomas appear prior to which age?

Explanation:
Neuroblastoma tends to appear in very young children, with half of cases diagnosed before age two. The median age is about 18 months, so the 50th percentile of onset falls right in the 1 to 2 years range. That’s why this option best fits the question. The younger end (6 months) is earlier than the median for half the cases, and the older ranges (3 to 5 years or 5 to 7 years) occur after the point where 50% have already presented, making them less representative of the typical distribution.

Neuroblastoma tends to appear in very young children, with half of cases diagnosed before age two. The median age is about 18 months, so the 50th percentile of onset falls right in the 1 to 2 years range. That’s why this option best fits the question. The younger end (6 months) is earlier than the median for half the cases, and the older ranges (3 to 5 years or 5 to 7 years) occur after the point where 50% have already presented, making them less representative of the typical distribution.

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