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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 ()?

Respuesta :

To find the sample mean number or the mean of the sample, you need to add all of the numbers together, then divide by 20 because that was the number of blocks of trees you added together. 

Work: 24+17+7+20+28+27+10+21+30+8+30+27+22+27+27+13+27+20+24+17=426
426/20=21.3

Final Answer: 21.3

Answer: 21.3

Step-by-step explanation:

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