A survey asked eight people about their wages and educational background. The table shows the hourly wages reported by people with and without a high school diploma. A 2-column table with 4 rows. Column 1 is labeled No high school diploma with entries 10.00, 9.50, 11.50, 13.00. Column 2 is labeled High School Diploma with entries 19.00, 15.25, 14.00, 15.75. Use the information to complete the statements. The mean absolute deviation for people without a high school diploma is . The mean absolute deviation for people with a high school diploma is . The data for people without a high school diploma are more the mean than the data for people with a high school diploma.

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Using the mean absolute deviation concept, it is found that:

  • The mean absolute deviation for people without a high school diploma is 1.25.
  • The mean absolute deviation for people with a high school diploma is 1.5.
  • The data for people without a high school diploma is more concentrated than the data for people with a high school diploma.

What is the mean absolute deviation of a data-set?

  • The mean of a data-set is given by the sum of all observations divided by the number of observations.
  • The mean absolute deviation of a data-set is the sum of the absolute value of the difference between each observation and the mean, divided by the number of observations.
  • The mean absolute deviation represents the average by which the values differ from the mean.

For people without high-school diplomas, we have that the mean and the MAD are given as follows:

  • M = (10 + 9.5 + 11.5 + 13)/4 = 11.
  • MAD = (|10 - 11| + |9.5 - 11| + |11.5 - 11| + |13 - 11|)/4 = 1.25.

For people with high-school diplomas, we have that the mean and the MAD are given as follows:

  • M = (19 + 15.25 + 14 + 15.75)/4 = 16.
  • MAD = (|19 - 16| + |15.25 - 16| + |14 - 16| + |15.75 - 16|)/4 = 1.5.

Hence, due to the lower MAD, we have that:

The data for people without a high school diploma is more concentrated than the data for people with a high school diploma.

More can be learned about the mean absolute deviation concept at https://brainly.com/question/3250070

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