Suppose a Random Sample of N = 64 Measurements Is $\sigma = 12 \text {. Find the } z \text {-score corresponding to a value of } \bar { x } = 68 \text {. }$

Suppose a random sample of n = 64 measurements is selected from a population with mean μ = 65 and standard deviation $\sigma = 12 \text {. Find the } z \text {-score corresponding to a value of } \bar { x } = 68 \text {. }$ 3 Find Probability