Mathematics, 23.09.2019 10:30, kaffolter25

In an attempt to be environmentally friendly, the city council decides that there must be at least 18 trees on each block in the city. a sample of 20 blocks was randomly surveyed, with these results (number of trees per block): 24, 17, 7, 20, 28, 27, 10, 21, 30, 8, 30, 27, 22, 27, 27, 13, 27, 20, 24, 17. what is the sample mean number of trees per block (x¯)?
17.7
21.3
24
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In an attempt to be environmentally friendly, the city council decides that there must be at least 1...