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Louisiana State University Measures of Dispersion Problems

Question Description

I don’t understand this Mathematics question and need help to study.

1.A group of data items and their mean are given.

30, 50, 70, 120, 180, 270; Mean = 120

a. Find the deviation from the mean for each of the data items.

b. Find the sum of the deviations in part (a).

a. Type the deviation from the mean for each of the data items.

 30 50 70 120 180 270

2. A group of data items and their mean are given.

98, 116, 136, 138, 146, 194; Mean = 138

a. Find the deviation from the mean for each of the data items.

b. Find the sum of the deviations in part (a).

a. Type the deviation from the mean for each of the data items.

 98 116 136 138 146 194

3. Find a. the mean; b. the deviation from the mean for each data item; and c. the sum of the deviations in part (b) for the following group of data items. 57, 87, 72, 57, 102

4. Find a. the mean; b. the deviation from the mean for each data item; and c. the sum of the deviations in part (b) for the following group of data items. 131, 135, 141, 145, 148

5. Find a. the mean; b. the deviation from the mean for each data item; and c. the sum of the deviations in part (b) for the following group of data items. 2.25, 3.35, 2.45, 2.05, 3.65

6. Find the mean deviation score for each value. 4, 2, 11, 7, 5, 3, 14, 9, 8.

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