Question

$\begin{array}{ccc}NumberofCups& Frequency& CumulativeFrequency\\ 2& 1& 1\\ 3& 3& 4\\ 4& ----& 9\\ 5& 7& 16\\ 6& 4& 20\end{array}$

For the above given frequency table, find the missing frequency.

• A. 7
• B. 6
• C. 5
• D. 4

Answer 1

The correct option is C

5

In the above table, the frequency is missing for observation of 4 cups.

The frequency for a particular observation = Cumulative frequency of that observation - Cumulative frequency of preceding observation

Cumulative frequency for 4 cups = 9

Cumulative frequency for 3 cups = 4

$\therefore$ Missing frequency = 9 - 4 = 5