What is the R code or function for this problem?

3.4 The Rayleigh density (156, Ch. 18) is f(x) = ge-/(20), 2 > 0,0 > 0. Develop an algorithm to generate random samples from a Rayleigh(o) distri- bution. Generate Rayleigh(o) samples for several choices of o > 0 and check that the mode of the generated samples is close to the theoretical mode o (check the histogram). 3.4 The Rayleigh density (156, Ch. 18) is f(x) = ge-/(20), 2 > 0,0 > 0. Develop an algorithm to generate random samples from a Rayleigh(o) distri- bution. Generate Rayleigh(o) samples for several choices of o > 0 and check that the mode of the generated samples is close to the theoretical mode o (check the histogram)