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Novay_Z [31]
2 years ago
10

20 points please help

Mathematics
1 answer:
sergejj [24]2 years ago
8 0

Answer:

3.71

Step-by-step explanation:

The mean absolute deviation(MAD) of a data set is given by the formula

$ MAD =\frac{1}{n} \sum_{i=1}^n |x_i-\bar{x}|$

n = number of data set values. Here n = 7

\bar{x}= mean of the data set values; \bar{x}= (14+13+16+12+17+21+26)/7 = 119/7=17

x_{i} are the n individual values

\frac{1}{7} |14-17| + |13-17| + |16-17| + |12-17| + |17-17| + |21-17| + |26-17|\\= (3  + 4 + 5 + 1+ 0 + 4 + 9)/7\\= 26/7 = 3.71428 \\

= 3.71 \textrm{ rounded to the nearest hundredth}  Answer  

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