A concrete mix is designed to withstand 3000 pounds per square inch (psi) of pre

Question

A concrete mix is designed to withstand 3000 pounds per square inch (psi) of pressure The following data represent the strength of nine randomly selected casts (in psi) Compute the mean, median and mode strength of the concrete (in psi) Compute the mean strength of the concrete. Select the correct choice below and, if necessary fill in the answer box to complete your choice. A The mean strength of the concrete is 3630, psi of pressure (Round to the nearest tenth as needed.) B. The mean does not exist Compute the median strength of the concrete. Select the correct choice below and if necessary fill in the answer be to complete your choice. A. The median strength of the concrete is psi of pressure B. The median does not exist

Explanation / Answer

a) Mean is sum of all obsevations divided by 9

Mean will be 3630

b) Medain will be 3820

c) Mode will be 4100 because it occur two times

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