Brain Right hemisphere is random and left hemisphere is linear? really?
You shouldn't.  It is one of those stubbornly persistent myths.  It is almost entirely false.  It is true that in some tasks one half of the brain is more prominent (although even in supposed classic cases like speech both halves are actually involved, just one half more than the other).
But the idea that one half of the brain is logical and the other intuitive or emotional is simply false.  At most, one half the brain is slightly more prominent in processing some tasks that may be perceived by us as more logical or more intuitive, but that is really as far as it goes.