[SOLVED] Basketball players problem

Question

import statistics

players = [180, 172, 178, 185, 190, 195, 192, 200, 210, 190]
statistics.stdev(players)
# std is 11.1 , mean is 189.2

So, I need to output how many players are between (189.2 - 11.1) to (189.2 + 11.1)

Answer 1

The correct answer is:
players = [180, 172, 178, 185, 190, 195, 192, 200, 210, 190]

mean = sum(players)/len(players)
stdvar = (sum((v-mean)**2 for v in players)/len(players))**0.5

low, high = mean-stdvar,mean+stdvar

count = len([v for v in players if low < v < high])

print(count)

Answer 2

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

import numpy as np

mean = np.mean(players)
standard_deviation = np.std(players)
variance = np.var(players)
result = 0
for i in players:
if i >= mean-standard_deviation and i <= mean+standard_deviation:
result += 1
print(result)

Answer 3

import numpy as np

players = [180, 172, 178, 185, 190, 195, 192, 200, 210, 190]
data = np.array(players)

m = np.mean(data)
std = np.std(data)

under = m - std
above = m + std

fit = data[(data>under) & (data<above)]
print(len(fit))

Answer 4

yes, you must loop over the array and count how many values matches the conditions ;)

finally, just output the count...

Answer 5

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

mean = sum(players) / len(players)
std = (sum([(i - mean) ** 2 for i in players]) / len(players)) ** 0.5

print(len(list(filter(lambda x: mean - std < x < mean + std, players))))

Answer 6

All it was wrriten was just :”players = [180,172,178,185,190,195,192,200,210,190]
My code is : import statistics

players = [180, 172, 178, 185, 190, 195, 192, 200, 210, 190]
mean = (180 + 172 + 178 + 185 + 190 + 195 + 192 + 200 + 210 + 190) / 10
statistics.stdev(players)

So, I know the mean and the std, all I have to do now is to check how many players are in that range... like I have to use smth like for players in range... idk...any idea?

Answer 7

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

mean = sum(players)/len(players)
std = (sum((height-mean)**2 for height in players)/len(players))**0.5

high = mean+std
low=mean-std

total = len([height for height in players if low < height < high])

print(total)

Answer 8

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

total=0
mean=0
for player in players:
total=total + player

mean=total/len(players)

squared_differences = [ (player-mean)**2 for player in players ]

total_squared_differences=0

for squared_difference in squared_differences:
total_squared_differences=total_squared_differences + squared_difference

variance=total_squared_differences/len(players)

standard_deviation=variance**0.5

low, high = mean-standard_deviation,mean+standard_deviation

count = len([player for player in players if low < player < high])

print(count)

Answer 9

This is how I solved it:

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

mean = sum(players)/len(players)

total = 0
for x in players:
x = (x-mean)**2
total += x

avgresult = total/len(players)
std_dev = math.sqrt(avgresult)

results = 0
for p in players:
if mean-std_dev < p and mean+std_dev > p:
results = results + 1

print(results)

Answer 10

well, you're right...
where is your coding attempt?

we need to see what you've tried so far to be able to help ^^

Answer 11

Thank You!

Answer 12

Coalemus because your for loop should throw an error, as you're trying to iterate in a range of float (decimal) values, while it expect intergers (whole numbers)...

anyway, you should post your own question to be helped further ^^

Answer 13

Oh my bad, thanks anyway!

Answer 14

kensy Nicolle Gutierrez Flores kindly stop spamming others threads, and rather post your own question in a brand new thread, by following the Q&A guidelines (accurate and short title, useful tags and explanation of your specific problem in the description field with your code attempt provided)...

Answer 15

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)
var=sum((x-mean)**2 for x in players)
std=var**0.5
for players in range(int(mean-std),int(mean+std)):
print(players)

what might be the issue with this code??