rebeccathecatt
19.11.2020 •
Mathematics
Family A and Family B both have 8 people in their family. The ages of each member are listed below.
Family A: 35, 5, 42, 9, 16, 3, 8, 12
Family B: 1, 5, 29, 3, 7, 35, 6, 9
Which statement is correct about the variability of the two families?
The variability is the same for both Family A and Family B because they have the same mean absolute deviation.
The variability is the same for both Family A and Family B because they have the same mean absolute deviation.
The variability for Family A is greater because the mean absolute deviation is greater for Family A.
The variability for Family A is greater because the mean absolute deviation is greater for Family A.
The variability for Family B is greater because the mean absolute deviation is greater for Family B.
The variability for Family B is greater because the mean absolute deviation is greater for Family B.
There is not enough information to determine the variability.
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Ответ:
Step-by-step explanation:
the 2nd line can be rewritten as y < x-3
So, any value that is less than both 4x+4 and x-3 will work
Pick any value you want for x, and figure y possibilities
x=0; x-3=-3, 4x+4=4, so y<-3 ... (0,-5) will work
I'm sure you can now come up with other pairs.