Given :
Two mean absolute value deviation 15.2 and 10.9 .
To Find :
Which mean absolute value deviation represents more consistency 15.2 or 10.9 .
Solution :
First we should know what is mean absolute deviation ( M.A.D) is :
M.A.D of a data set is the average distance between each data value and the mean .
It also describe the variation in a data set .
Also , high variability means the data is spread out and low variability means that data is clustered .
So, low variation means more consistency and vice-versa .
Therefore , 10.9 M.A.D is more consistent .
Hence , this is the required solution .
Answer:
There is no option in the question given.
However, In logic and probability theory, two events are mutually exclusive or disjoint if they cannot both occur at the same time. A clear example is the set of outcomes of a single coin toss, which can result in either heads or tails, but not both.
note that the zeroes should be x = 1 and x = - 2 not x = - 1 and x = 2
the factors are then ( x - 1 ) and (x + 2)
and x³ - 4x² - 7x + 10 = (x - 1 )(x + 2) = x² + x - 2
thus x² + x - 2 is a factor
dividing x³ - 4x² - 7x + 10 by x² + x - 2 gives x - 5
the third zero is x = 5
check : (5)³ -4(5)² - 7(5) + 10 = 125 - 100 - 35 + 10 = 0
First subtract -19 - 1 = -20
Next, + (-24) is the same as just simply subtracting 24
-20 - 24
Subtract that and you get -44
