Answer :

To find the median of a set of numbers, you should first arrange the numbers in order from smallest to largest. Then, the median is the middle number in this ordered list.

Here's a step-by-step approach to find the median height of the given 9 students:

  1. Start with the given heights: 147, 145, 150, 151, 148, 148, 145, 146, 144.

  2. Arrange the heights in ascending order: 144, 145, 145, 146, 147, 148, 148, 150, 151.

  3. Identify the number of heights given: There are 9 heights in total.

  4. Find the middle position: Since the number of data points (9) is odd, the median will be the number at the (n + 1) / 2 position, where n is the total number of data points.
    [tex]\text{Position} = \frac{9 + 1}{2} = 5[/tex]

  5. Locate the median: The 5th number in the ordered list is 147.

Therefore, the median height is 147 cm.

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