Help with correlation coefficient

[mattjb84]

Trying to calculate the correlation coefficient between the two lists, so far no luck. Any suggestions or help would be greatly appreciated?

from table_utils import *
from stats_utils import *

cars = [29.9, 30.2, 30.3, 30.1, 30.3, 30.4, 30.5, 30.9, 31.1, 31.5, 31.7]
papers = [337, 322, 311, 299, 264, 242, 213, 191, 190, 174, 164]

car_list = []
papers_list = []

for car_row in cars:
    area = car_row[0]
    for papers_row in papers:
        if area == papers_row[1]: 
             car_list.append(float(car_row[1]))
             papers.append(float(papers_row[2])) 

corr = round(corr_coef(car_list, papers_list), 2)
print('Correlation coefficient =', corr)