Evaluate the expression for the given value of the variable.
|
−
4
b
−
8
|
+
∣
∣
−
1
−
b
2
∣
∣
+
2
b
3
;
b
=
−
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 between 80 and 120.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 between 80 and 120.