Answer:
The ratio of the difference of the two means to Sidney's mean absolute deviation =
= 1.2195
Step-by-step explanation:
P.S - The exact question is -
Given - The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below.
Sidney’s Grades Phil’s Grades
Mean 82 78
Mean Absolute Deviation 3.28 3.96
To find - Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?
Proof -
Given that Mean of Sidney Grades = 82
Mean of Phil's Grades = 78
So,
The difference of two means = 82 - 78 = 4
Also,
Given, Mean Absolute Deviation of Sydney = 3.28
Now,
The ratio of the difference of the two means to Sidney's mean absolute deviation =
= 1.2195
1.556302501 or 1.556
hope this helps
Answer:
The average rate of change is ![=-4](https://tex.z-dn.net/?f=%3D-4)
Step-by-step explanation:
The average rate of change from x=a to x=b of f(x) is given by;
![=\frac{f(b)-f(a)}{b-a}](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bf%28b%29-f%28a%29%7D%7Bb-a%7D)
We want to find the average rate of change of the function represented in the table from x=-2 to x=2.
![=\frac{f(2)-f(-2)}{2--2}](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bf%282%29-f%28-2%29%7D%7B2--2%7D)
From the table f(-2)=25 and f(2)=9
The average rate of change from x=-2 to x=2 is
![=\frac{9-25}{2--2}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B9-25%7D%7B2--2%7D)
![=\frac{-16}{4}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B-16%7D%7B4%7D)
![=-4](https://tex.z-dn.net/?f=%3D-4)
Answer:
She has 6 1/3. The larger dress need 3 2/3. So 6 1/3 - 3 2/3 = 2 2/3
So Mrs. Rodriguez will need 2 2/3 for the smaller dress
Step-by-step explanation: