The answer is B. It’s not too difficult
Answer:
B
Step-by-step explanation:
Find the common denominator of all the fractions, add the converted fractions of 0, 2, and 3, then simplify
Answer:
Step-by-step explanation:
Given are 3 data sets with values as:
(i) 8 9 10 11 12 ... Mean =10
(ii) 7 9 10 11 13 ... Mean =10
(iii) 7 8 10 12 13 ... Mean =10
We see that data set shows mean deviations as
(i) -2 -1 0 1 2
(ii) -3 -1 0 1 3
(iii) -3 -2 0 2 3
Since variance is the square of std deviation, we find that std deviation is larger when variance is larger.
Variance is the sum of squares of (x-mean). Whenever x-mean increases variance increases and also std deviation.
Hence we find that without calculations also (i) has least std dev followed by (ii) and then (iii)
(i) (ii) (iii) is the order.
b) Between (i) and (ii) we find that 3 entries are the same and 2 entries differ thus increasing square by 9-4 twice. But between (ii) and (iii) we find that
increase in square value would be 4-1 twice. Obviously the latter is less.
The equation of the graph of 
is (d) on a coordinate plane, an absolute value graph starts at (0, 0) and goes up through (4, 2).
The equation of the graph is represented as:
See attachment for the graph of
From the attached graph, the curve passes through points (0,0) and (4,2).
Hence, the equation of the graph of is (d)
Read more about graphs and functions at:
brainly.com/question/3939432
Answer:
you put two of the equations together and then the last one there you just automatically added on
Step-by-step explanation:
4x-7y=-28
25xy
