60/15=4 meaning 25% of the dogs are purebreed
Answer:
if you mean y-mx+b form
Step-by-step explanation:
y
=−
4
x+15

I'm not sure if you need to simplify
Answer:
MAD = 2
Step-by-step explanation:
<u><em>First We'll find the mean of data</em></u>
Mean = 
Mean = 4
<u><em>Then, we'll find absolute deviation</em></u>
=> |4-3| = 1
=> |4-2| = 2
=> |4-1| = 3
=> |4-1| = 3
=> |4-3| = 1
<em><u>Now, taking the mean of these absolute deviations:</u></em>
MAD = 
MAD = 
MAD = 2
Step-by-step explanation:
hope this helps you.........