$\begin{array}{c|c} Class & Frequency\\ \hline 1 - 5 & 2\\6 - 10 & 4\\11 - 15 & 5\\16 - 20 & 2 \\ 21 - 25 & 3\\26 - 30 & 2\\31 - 35 & 1\\36 - 40 & 1 \end{array}$
Find the median of the observation in the table given

11.5

12.5

14.0

14.5

Correct answer is D

Median = L₁ + ( $\frac{Ef}{fm}$ ) - fo

$\frac{\sum f}{2}$

= $\frac{20}{2}$

= 10, L₁ = 10.5, fo = 6, fm = 5

Median = 10.5 + $\frac{(10 - 6)}{5}$ 5

= 10.5 + 4

= 14.5

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$\begin{array}{c|c} Class & Frequency\\ \hline 1 - 5 & 2\\6 - 10 & 4\\11 - 15 & 5\\16 - 20 & 2 \\ 21 - 25 & 3\\26 - 30 & 2\\31 - 35 & 1\\36 - 40 & 1 \end{array}$
Find the median of the observation in the table given

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ClassFrequency1−526−10411−15516−20221−25326−30231−35136−401\begin{array}{c|c} Class & Frequency\\ \hline 1 - 5 & 2\\6 - 10 & 4\\11 - 15 & 5\\16 - 20 & 2 \\ 21 - 25 & 3\\26 - 30 & 2\\31 - 35 & 1\\36 - 40 & 1 \end{array} Find the median of the observation in the table given

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$\begin{array}{c|c} Class & Frequency\\ \hline 1 - 5 & 2\\6 - 10 & 4\\11 - 15 & 5\\16 - 20 & 2 \\ 21 - 25 & 3\\26 - 30 & 2\\31 - 35 & 1\\36 - 40 & 1 \end{array}$
Find the median of the observation in the table given