the graph below represents the number of siblings each student in a class has. siblings what was the median…
the graph below represents the number of siblings each student in a class has. siblings what was the median number of siblings?
Answer
Answer:
2
Explanation:
Step1: Calculate total number of students
$7 + 2+5 + 5+4=23$
Step2: Determine position of median
Since $n = 23$ (odd - numbered data set), the median is at the $\frac{n + 1}{2}=\frac{23+ 1}{2}=12$th position.
Step3: Find the median
Count the frequencies: 7 students have 0 siblings, $7+2 = 9$ students have 0 or 1 sibling, and $7 + 2+5=14$ students have 0, 1 or 2 siblings. The 12th student falls within the group of students with 2 siblings. So the median is 2.