In a normal distribution what percent of values fall within one standard deviation of the mean?
19.1%
15%
30%
68.2%

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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.