siblings\nwhat was the median number of siblings?

Explanation:

Step1: Calculate total number of students

Add up the frequencies: $4 + 4+1 + 4+8 + 4=25$.

Step2: Determine position of median

Since $n = 25$ (odd - numbered data set), the median is at the $\frac{n + 1}{2}=\frac{25+1}{2}=13$th position.

Step3: Find the median

Count the frequencies: For $0$ siblings, frequency is $4$; for $1$ sibling, frequency is $4$, cumulative frequency is $4 + 4=8$; for $2$ siblings, frequency is $1$, cumulative frequency is $8+1 = 9$; for $3$ siblings, frequency is $4$, cumulative frequency is $9 + 4=13$. So the median number of siblings is $3$.

Answer:

$3$