In a normal distribution with mu = 25 and sigma = 3, what number corresponds to z = -3?
is it 16, 18, or 20
Formula:
z = (x - mean)/sd
Plug in the numbers you know from the problem:
-3 = (x - 25)/3
Solve for x.
is it 16, 18, or 20
z = (x - mean)/sd
Plug in the numbers you know from the problem:
-3 = (x - 25)/3
Solve for x.