Question Help A concrete mix is designed to withstand 3000 pounds per square inc

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Question Help 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 th 3970, 4090, 3200, 3200. 2930, 3820, 4080, 4040, 3790 answer box to complete your choice. A. The mean strength of the concrete is psi of pressure. O B. The mean does not exist. Compute the median strennth of the concrete. Select the correct choice below and, if necessary, fill in Round to the nearest tenth as needed.) the answer box to complete your choice. OA. The median strength of the concrete is psi of pressure. Round to the nearest tenth as needed.) The median does not exist. B. Compute the mode strength of the concrete. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. 0 A. psi of pressure. The mode of the strengths of the concrete is (Round to the nearest tenth as needed.) The mode does not exist B.

Explanation / Answer

The given data is arranged in ascending order as follows-

Mean= (2930+3200+3200+......+4090)/9

= 3680

Median= Since it is a data with odd number of samples we get one middle most value which is observation 5th

So, Median=3820

Mode= Most frequent observation=3200 which appeared twice in the data

2930 3200 3200 3790 3820 3970 4040 4080 4090

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