how to solve?

Instructions: A farmer has just cleared a new field for tapioca. It is a plot of land where a river adjacently runs along one side. The tapioca looks good in some areas of the field but not others. The farmer is unsure whether harvesting the field is worth the cost. Since then, he decided to harvest 10 plots and use the findings to estimate the total yield. Based on this estimation, he will decide whether to harvest the remaining plots. 1. Convenience sample:- a. Initially, the farmer chooses 10 plots that would be easy to harvest. They are marked on the grid below: X b. Suddenly, the farmer makes up his mind about this selection and decided to consult you, as a spatial statistician to approximate the yield of the field. c. Again, you are to pick 10 plots to harvest early. Your task is to decide which of the following methods is the best one to use and later on, to decide if this is an improvement over the farmer's original plan