def cohens_d(xbar, mu, s):
	"""
	Get the Cohen's d for a sample.

	Parameters
	----------
	> xbar: mean of the sample
	> mu: mean of the population
	> s: standard distribution of the sample

	Returns
	-------
	Cohen's d, or the number of standard deviations the sample mean is away from the population mean
	"""

	return (xbar - mu) / s