Cody

Problem 1267. Calculate the probability that at least two people in a group share the same birthday.

Solution 2737411

Submitted on 24 Jul 2020 by Dennis Gimlin
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Test Suite

Test Status Code Input and Output
1   Pass
n = 1; y_correct = 0.00; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 0

2   Pass
n = 366; y_correct = 1.00; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 1

3   Pass
n = 0; y_correct = 0.00; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 0

4   Pass
n = 23; y_correct = 0.5073; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 0.5073

5   Pass
n = 50; y_correct = 0.9704; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 0.9704

6   Pass
n = 100; y_correct = 1.0000; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 1.0000

7   Pass
n = 10 y_correct = 0.1169; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

n = 10 y = 0.1169

8   Pass
n = 13 y_correct = 0.1944; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

n = 13 y = 0.1944

9   Pass
n = 2; y_correct = 1/365; assert(abs(birthday_prob(n)-y_correct) <= 0.015)

y = 0.0027

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