$\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1 \end{array}$
The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.

3.8

3.0

2.8

2.3

Correct answer is A

$\begin{array}{c|c} height(x) & frequency(f) & fx \\ \hline 2 & 2 & 4\\ 3 & 4 & 12\\ 4 & 5 & 20 \\ 5 & 3 & 15\\ 6 & 1 & 6\end{array}$

mean $\bar{x} = \frac{\sum fx}{\sum f}$

= $\frac{57}{15}$

= 3.8

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$\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1 \end{array}$
The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.

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height23456frequency24531\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1 \end{array} The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.

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$\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1 \end{array}$
The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.