Davita works at a shoe store. She measured the feet of nine customers and found that their shoe sizes were 4, 5, 5, 6, 7, 8, 8, 10 and 10. find the sum of the absolute deviations from the mean.

Sum of absolute deviation = 16  

mad = 1.78

Mean of data (u) = (sum of data / number of observations)  

( 4 + 5 + 5 + 6 + 7 + 8 + 8 + 10 + 10) / 9  

= 63/9  

= 7  

Absolute deviation = ( x - u)  

Sum of absolute deviation ;  

|4-7| + |5-7| + |5-7| + |6-7| + |7-7| + |8-7| + |8-7| + |10-7| + |10-7|  

3 + 2 + 2 + 1 + 0 + 1 + 1 + 3 + 3 = 16

Hopefully this helps

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3