If the scores of 3 students in a test are 5, 6 and 7, find
MATHEMATICS
JAMB 1992
If the scores of 3 students in a test are 5, 6 and 7, find the standard deviation of their scores
- A. \(\frac{2}{3}\)
- B. \(\frac{2}{3}\sqrt{3}\)
- C. \(\sqrt{\frac{2}{3}}\)
- D. \(\sqrt{\frac{3}{2}}\)
Correct Answer: C. \(\sqrt{\frac{2}{3}}\)
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