Suppose X ~ (9,3) what is the z score of x=0
To find the z-score of x=0 with a mean of 9 and a standard deviation of 3, we can use the formula:
z = (x - μ) / σ
Where:
x = the value we want to standardize (0 in this case)
μ = the mean (9 in this case)
σ = the standard deviation (3 in this case)
Plugging these values into the formula:
z = (0 - 9) / 3
z = -9 / 3
z = -3
Therefore, the z-score of x=0 is -3.