Can someone please explain how we would put this on MATLAB? I'm really confused

this is the textbook problem it's reffering to

Textbook problem 2.12 (2.7 in 3^rd ed.) for the following function and a range of z = -2 to 8. f(z) = 1/squareroot 2 pi e^-(z - 3)^2/2 Note this is a normal distribution with mean = 3 and standard deviation = 1. The standard normal probability density function is a bell-shaped curve that can be represented as f(z) = 1/squareroot 2 pi e^-z^2/2 Use MATLAB to generate a plot of this function from z = -5 to 5. Label the ordinate as frequency and the abscissa as z