\(\begin{array}{c|c} class& 1 - 3 & 4 - 6 & 7 - 9\\ \hline Frequency
MATHEMATICS
JAMB 1995
\(\begin{array}{c|c} class& 1 - 3 & 4 - 6 & 7 - 9\\ \hline Frequency & 5 & 8 & 5\end{array}\)
Find the standard deviation of the data using the table above
- A. 5
- B. \(\sqrt{6}\)
- C. \(\frac{5}{3}\)
- D. \(\sqrt{5}\)
Correct Answer: A. 5
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