To take a random sample from specified columns, complete the following steps.
In Number of rows to sample, specify the sample size.
In From columns, enter the columns that you want to sample from. If you enter several columns, Minitab samples from the same row across the multiple columns. All columns must be the same length.
In Store samples in, specify the columns where you want to store the sampled values. The number of storage columns must be the same as the number of columns sampled from.
(Optional) Check Sample with replacement if you want to be able to sample the same item more than once. If you don't select this option, each row can be in the sample only one time.