Respuesta :

Answer:

217

Step-by-step explanation:

  1. "Mean" = average
  2. To find the average: add the numbers together and then divide the sum by the amount of numbers added
  3. 284 + 192 + 264 + 128 = 868
  4. 868 ÷ 4 = 217
  5. So, the average is 217

I hope this helps!

Answer:

217

Step-by-step explanation:

The mean or average is calculated by taking the sum or addition of the data points, and dividing by the number of data points. This is known as a sample of data because it is a subset of data.

In simple terms, add all the numbers up, and divide by the number of numbers.

Arithmetic mean of a sample:

[tex]\bar{X} =\: \frac{\sum X}{n} [/tex]

In this case the mean or average is:

Mean = 284 + 192 + 264 + 128 / 4 = 868 / 4 = 217

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