Technical Report: Variance Analysis of Student Achievement

Technical Report: Variance Analysis of Student Achievement

Secondary 4

The thirty students in a class each took a Biology test. Their scores are shown in the table below.

Score	\(4\)	\(5\)	\(6\)	\(7\)	\(8\)	\(10\)
Frequency	\(2\)	\(5\)	\(11\)	\(8\)	\(3\)	\(1\)

Calculate

the mean score,
the standard deviation.

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Answer:(a) 6.3. (b) 1.24.

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