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What is the arithmetic mean of the observations 2, 8.2, 3, 9, 11.2, 4?(a) 5.5(b) 8.45(c) 6.23(d) 7.1I got this question during an internship interview.My doubt stems from Statistics topic in chapter Statistics of Mathematics – Class 10

Answer»

The CORRECT CHOICE is (c) 6.23

The BEST EXPLANATION: Arithmetic mean = \(\frac {Sum \, of \, the \, OBSERVATIONS}{Number \, of \, observations}\)

= \(\frac {2+8.2+3+9+11.2+4}{6}\)

= 6.23



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