Assume that we would like to estimate the height of a building using a very imprecise altimeter. We know for sure, that the building height doesn’t change over time, at least during the short measurement process. The true building height is 50 meters. The altimeter measurement error (standard deviation) is 5 meters. The set of ten measurements is: 48.54m, 47.11m, 55.01m, 55.15m, 49.89m, 40.85m, 46.72m, 50.05m, 51.27m, 49.95m.