The Boundary Gap Trap

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StatisticsVideo challenge · STAT02

The Boundary Gap Trap

CBSE Class 10 · Solve it one decision at a time. A wrong pick earns a nudge, never the answer.

Step 1 of 7

The problem

The median of the following frequency distribution is 2828 and the total frequency is 4040. Find the missing frequencies pp and qq.
ClassFrequency f1–10411–20p21–301231–40q41–506\begin{array}{|c|c|}\hline \text{Class} & \text{Frequency } f \cr \hline 1\text{–}10 & 4 \cr 11\text{–}20 & p \cr 21\text{–}30 & 12 \cr 31\text{–}40 & q \cr 41\text{–}50 & 6 \cr \hline \end{array}

Step 1 · Your move

Before the guided steps, what values of p and q did you get?

Total frequency N=40,Median=28\text{Total frequency } N = 40,\quad \text{Median} = 28
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