6 mm
1 answer:
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Answer:
The sample mean is of 266.5 dollars.
Step-by-step explanation:
Sample mean:
The sample mean is given by the sum of all values in the sample divided by the number of values.
In this question:
12 values.
The sum is:
115 + 370 + 250 + 93 + 540 + 225 + 177 + 425 + 318 + 182 + 275 + 228 = 3198
The sample mean is:
The sample mean is of 266.5 dollars.