The mean can be revealed by looking at the ranges of numbers. You need exact numbers to find a mean.
Median is just to middle. Hopefully you can find the middle bar.
Answer:
a) input 9,10,11
output 12,13,14
Step-by-step explanation:
If we look at the pattern, number 3 is added to the consecutive input numbers 1, 2 and 3 to generate a set of output numbers.
Clearly, option (a) follows this rule. Number 3 is added to the consecutive input numbers 9, 10 and 11 to produce 12, 13 and 14.
In option (b), 4 is added to the input numbers.
In option (c), 2 is added to the input numbers and
in option (d), 3 is multiplied to the input numbers.
Hence, the correct option is (a).
Answer:
B, C
Step-by-step explanation:
7 - x = 18
A.
7 - 2x = 18 - x
126 - 14x = 324 - 18x
We are nowhere near the solution.
B.
-x = 11
x = -11
This works.
C.
7 = x + 18
-11 = x
This works.
D.
25 - x = 36
-25 + x = -36
This does not help.
E.
7 = x + 18
0 = x + 11
We still do not have a solution.
Answer: B, C
