Help! (Python Data Science 1st module project)

Question

Hi guys, I am struggling with this exercise because I don't understand what goes wrong. Could you help me? I'll paste it down below because the upload of my code doesn't work (there must be a bug, ugh).
# The given code includes a list of heights for various basketball players.
# You need to calculate and output how many players are in the range of one standard deviation from the mean.
players = [180, 172, 178, 185, 190, 195, 192, 200, 210, 190]
mean = sum(players) / len(players)
variance = sum([(elem - mean)**2 for elem in players]) / len(players)
std = variance**(1/2)
print (mean-std)

Answer 1

You calculated mean and sd, now you only need to take the player list and count how many of the players have
(mean - sd) < height < (mean + sd)

Answer 2

Thank you very much! ♥️