06 Probabilities from density curves#

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import numpy as np
import pandas as pd
from pandas import Series, DataFrame
import matplotlib.pyplot as plt 
import seaborn as sns

khanacademy

Probabilities from density curves fig 1Probabilities from density curves fig 2

mu = 150
sigma = 20

def cal_emperical_rule(mu, sigma):
    mu = 7 * [mu]
    sigma_scaler = np.arange(-3, 4, 1) 
    sigma_scales = sigma_scaler * sigma
    emperical_rule_lst = mu + sigma_scales
    return emperical_rule_lst

cal_emperical_rule(mu, sigma)[2:-2]

array([130, 150, 170])

# find a better way to calulate emperical rule 
# visualize em