Problem 1159. Coin Tossing: Probability of Same Heads for N tosses

Solution 273889

Submitted on 5 Jul 2013 by Dan

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Test	Status	Code Input and Output
1	Pass	%% assert(isequal(.5, round(1e6*coin_head_match(1))/1e6))
2	Pass	%% assert(isequal(.375, round(1e6*coin_head_match(2))/1e6))
3	Pass	%% assert(isequal(.3125, round(1e6*coin_head_match(3))/1e6))
4	Pass	%% assert(isequal(.273438, round(1e6*coin_head_match(4))/1e6))
5	Pass	%% assert(isequal(.246094, round(1e6*coin_head_match(5))/1e6))
6	Pass	%% assert(isequal(.225586, round(1e6*coin_head_match(6))/1e6))
7	Pass	%% assert(isequal(.139950, round(1e6*coin_head_match(16))/1e6))
8	Pass	%% assert(isequal(.125371, round(1e6*coin_head_match(20))/1e6))
9	Pass	%% assert(isequal(.114567, round(1e6*coin_head_match(24))/1e6))
10	Pass	%% assert(~isequal(1,2))
11	Pass	%% assert(isequal(.099347, round(1e6*coin_head_match(32))/1e6)) [Warning: Result may not be exact. Coefficient is greater than 9.007199e+15 and is only accurate to 15 digits] [> In nchoosek at 78 In coin_head_match at 2 In verifyCode>evaluateCode at 227 In verifyCode at 40 In fevalJSON at 14]
12	Pass	%% assert(isequal(.070386, round(1e6*coin_head_match(64))/1e6)) [Warning: Result may not be exact. Coefficient is greater than 9.007199e+15 and is only accurate to 15 digits] [> In nchoosek at 78 In coin_head_match at 2 In verifyCode>evaluateCode at 227 In verifyCode at 40 In fevalJSON at 14]