The expression that represents the ratio of the difference of the two means to Sidney’s mean absolute deviation is given by: Option B: 4/3.28
<h3>What is mean absolute deviation?</h3>
Mean absolute deviation is the average of the absolute deviation of each observation from their mean, for a considered set of observations.
For this case, the table of mean and mean absolute deviation is given as:

(M.A.D refers to Mean Absolute Deviation).
So, difference in their mean is 82 - 78 = 4
Absolute deviation for Sidney is 3.28
Thier ratio is: 4/3.28
Thus, the expression that represents the ratio of the difference of the two means to Sidney’s mean absolute deviation is given by: Option B: 4/3.28
Learn more about ratio here:
brainly.com/question/12106245
Answer:
y = - x + 5 should be the answer. Hope this helps!
Step-by-step explanation:
Eight thousandths and eight hundredths
Hi there!
4/10 = (4*10)/(10*10) = 40/100
40/100 + 28/100 = 68/100
68/100 = 34/50 = 17/25
Hope this helps!
5X-20=4X+7
5X-4x=20+7
X=27°