def generate_centroids(num_centroids: int, point_list: list, precision: int=3):
"""
Randomly generate centroids within the bounds of dataset
:param num_centroids: number of centroids required
:param point_list: list of Point objects
:param precision: number of decimal places of precision on location of centroids
:return: list of randomly generated centroids
"""
precision = 10 ** precision
centroid_list = []
x_vals = [i.x for i in point_list]
y_vals = [i.y for i in point_list]
x_max, x_min = max(x_vals), min(x_vals)
y_max, y_min = max(y_vals), min(y_vals)
for i in range(num_centroids):
centroid = Point(random.randrange(int(precision * x_min), int(precision * x_max)) / precision,
random.randrange(int(precision * y_min), int(precision * y_max)) / precision)
centroid.is_centroid = True
centroid.cluster_id = i
centroid_list.append(centroid)
point_list.append(centroid)
new_centroid_list = check_centroids(centroid_list=centroid_list, point_list=point_list, precision=3)
return new_centroid_list
