Problem 597. The Birthday Phenomenon

I think there might be something wrong with the test suite. When I run in Matlab, my answers match what the test suite is looking for, yet it still shows a failure.

Ben, your description suggests that rounding to 4 decimal places is optional. Perhaps you can clarify that. Test case with x = 365 is weird. The probability that no one shares a birthday for that x is close to 1.4550e-157 which is neglected during the rounding and hence highly probable event becomes a certainty !!

@Gary What you might be seeing is that the default output from Matlab is only 5 digits (generally). So you're probably seeing something like 0.0027 for X = 2 but if you multiply that answer by 1000 you will see there are still some digits trailing after the 7.

@Venu I think that's just an issue with how I did the calculation on my end. You're right that I should have it as 0.9999 in the test suite even though that is super close to 1 (the actual probability). I'll also make it clear in the brief that the answer should be out to 4 decimal points.