The workers in the workshop machined a kind of shaft. In order to know the diameter of this shaft, it is necessary to extract parts from it and measure them under the same conditions. How to use simpl

The workers in the workshop machined a kind of shaft. In order to know the diameter of this shaft, it is necessary to extract parts from it and measure them under the same conditions. How to use simple tools? There are two ways to do this.

There are two ways:

Method 1: (Draw lots) Number the axes as, and make numbers with the same size and shape, and write down these numbers respectively. You can put these numbers together, stir them evenly, then extract the numbers continuously, and then measure the axis corresponding to this number.

Method 2: (random number table method) number the axis as, according to the random number table in the textbook, if you take the number of rows, start to choose a:, and then measure the axis corresponding to this number.