(a) Arrange the plants in such a way that one plant acts as the dividing point and there are equal number of plants on either side of this dividing point.

The heights of the plants are: 5, 4, 132, 173, 142, 111, 123 (mm)

(b) You have to select the players for your football team. Which of the following given datasets will help you to take the decision?

Dataset 1. Name of the players

Dataset 2. Height of the players

Dataset 3. Stamina of players

Dataset 4. Nationality of the players
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Solution

Each part: 1 Mark
Steps: 1 Mark

(a) Since we have to choose one plant which acts as the dividing point and there are equal number of plants on either side of this dividing point, we need to find the median.

On arranging them in an ascending order we get,

4, 5, 111, 123, 132, 142, 173

The middle observation is 123 mm.

$\Rightarrow$ The median of the observation is 123 mm.

(b) The performance of a football player doesn't depend on his name or nationality. Performance solely depends on stamina and height. So, the data sets which will help us take a better decision are height and stamina of the players.

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