83.6969696969697 brainlyist answer me
-7a + 5a < -(7-a) -(2a +1) Turns to
-7a +5a < -7 +a -2a -1 Which turns to
-2a < -1a -8 Which turns to
-1a < -8 Which turns to
1a > 8
:)
The variation in any sample group is simply the square of
the correlation coefficient, that is:
variation = r^2
Therefore given an r value, we can simply directly
calculate for variation percentage.
variation = (0.743)^2
variation = 0.552 or 55.2%
Answer:
<span>B. 55.2%</span>