Scores of an iq test have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. use the empirical rule to determine the following.
(a) what percentage of people has an iq score between 55 and 145?
(b) what percentage of people has an iq score less than 55 or greater than 145?
(c) what percentage of people has an iq score greater than 145?

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.