Determine whether each system is consistent or inconsistent and if it is
independent or dependent.
1. y=x-1
2. X- y=-4
y=-x+1
y = x +4
3. y = x + 4
2x - 2y = 2
4. y = 2x - 3
2x - 2y = 2

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq less than 132. the probability that a randomly selected adult has an iq less than 132 is?