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  1. Prepare
  2. Mathematics
  3. Probability
  4. Day 4: Normal Distribution #1
  5. Discussions

Day 4: Normal Distribution #1

  • addsc7
     + 0 comments

    Here is my answer:

    # Enter your code here. Read input from STDIN. Print output to STDOUT
import math
def get_function(x):
    mu = 30
    sig = 4
    gaussian_func = (1 / (sig * math.sqrt(2 * math.pi))) * math.exp(-((x - mu) ** 2) / (2 * sig ** 2))
    return gaussian_func

start_value = 10
end_value = 50
step = 0.0001

x = [start_value + i * step for i in range(int((end_value - start_value) / step) + 1)]
y0 = 0
y1 = 0
y2 = 0
y3 = 0

for i in range(len(x)):
    y0 += get_function(x[i]) * step
    if x[i] < 40:
        y1 += get_function(x[i]) * step

    if x[i] > 21:
        y2 += get_function(x[i]) * step

    if 30 < x[i] < 35:
        y3 += get_function(x[i]) * step

result1 = int((y1 / y0) * 1000) / 1000
result2 = int((y2 / y0) * 1000) / 1000
result3 = int((y3 / y0) * 1000) / 1000

print(str(result1))
print(str(result2))
print(str(result3))