I need help on this question in python, I don't seem to get it right

Question

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.

Answer 1

attempt please

Answer 2

Show your attempt

Answer 3

import statistics
import math

players = [180, 172, 178, 185, 190, 195, 192, 200, 210, 190]

avg = round(statistics.mean(players), 2)

std = round(statistics.stdev(players), 2)

count = 0
for n in range(len(players)):
if math.isclose(players[n], avg, abs_tol=std):
count = count + 1

print(count)

Answer 4

ravilnicki thanks a lot, that's better, I will try using numpy,