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What is the standard deviation of the following data?
Measurement 0 - 10 10 - 20 20 - 30 30 - 40
Frequency 1 3 4 2

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detailed solution

Correct option is C

σ2=c2∑fiui2Σfi−∑fiui∑fi2 =102910−−3102=90−9=81⇒ σ=9

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What is the standard deviation of the following data?Measurement0 - 1010 - 2020 - 3030 - 40Frequency1342

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free study material

What is the standard deviation of the following data?
Measurement 0 - 10 10 - 20 20 - 30 30 - 40
Frequency 1 3 4 2