Help! I need to calculate and output how many players are in the range of one standard deviation from the mean.

Question

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

data_sum = sum(players)

mean = sum(players) / len(players)

new_list = []
for j in players:
new_list.append((j - mean) ** 2)

var = sum(new_list) / len(new_list)
std = var**(1/2)
std_pos = mean + std
std_neg = mean - std

std_list = []
for i in players :
if i >= std_neg and i <= std_pos
std_list.append(i)
print(len(std_list))

Answer 1

You're missing a colon `:` at the end of the if statement.

Answer 2

Is this what you’re looking to do?

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

mean = sum(players) / len(players)

players_in_range = 0
for j in players:
if mean + 1 <= j <= mean - 1:
players_in_range += 1
print(players_in_range)