1. To find the mean absolute deviation of the data, start by finding the mean of the data set.
2. Find the sum of the data values, and divide the sum by the number of data values.
3.Find the absolute value of the difference between each data value and the mean: ...
4. <span>Find the sum of the absolute values of the differences.</span>
Answer:
(x-1990)×25
Step-by-step explanation:
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Answer:
660
Step-by-step explanation:
First, to find out how much money they have collected so far, you need to add 7100 + 1300 which is 8400. 8400= $8.40. So now you know that they have collected 8.40, you need to subtract 1500-840 which = 660
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Answer:
<em>4x - 2</em>
Step-by-step explanation:
Simplify the expression:

First, we must remove the parentheses. The minus sign before them indicates we must apply the distributive property of multiplication, multiplying all the internal terms by -1:

Once the expression is free from parentheses, we collect like terms. There are two pairs of like terms: the terms with x, and the terms with only numbers.
Rearrange the expression:

Operating: -2+6=4, and 3-5=-2
The simplified expression is:
4x - 2