Question

question 7
the table below shows a students quiz scores on six quizzes.
find this students median quiz score
check answer

Explanation:

Step1: Sort the scores

Sort the scores in ascending order: \(8, 11, 13, 16, 18, 20\)

Step2: Calculate the median

Since there are \(n = 6\) (even number of data points), the median is the average of the \(\frac{n}{2}\)th and \((\frac{n}{2}+ 1)\)th values.
\(\frac{n}{2}=\frac{6}{2}=3\) and \(\frac{n}{2}+1 = 4\)
The 3rd value is \(13\) and the 4th value is \(16\)
Median \(=\frac{13 + 16}{2}=\frac{29}{2}=14.5\)

Answer:

\(14.5\)