The data below shows the recorded weights, in grams, of a random sample of apples. Using the data's mean weight, estimate the mean weight of the population of apples. Round to the nearest tenth.
33.2, 38.6, 41.9, 44.0, 42.9, 36.2, 41.7, 39.8, 43.5, 44.5, 30.5, 39.2
The mean weight of the entire population of apples is approximately __________________ grams.