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The frequency distribution of the compressive strength of 20 concrete cube specimens is given in the table.

If $\mu$ is the mean strength of the specimens and $\sigma$ is the standard deviation, the number of specimens (out of 20 ) with compressive strength less than $\mu-3 \sigma$ is



Question ID - 156847 | SaraNextGen Top Answer

The frequency distribution of the compressive strength of 20 concrete cube specimens is given in the table.

If $\mu$ is the mean strength of the specimens and $\sigma$ is the standard deviation, the number of specimens (out of 20 ) with compressive strength less than $\mu-3 \sigma$ is

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