What is the probability, to 3 decimal places, that at least two people in a room share the same birthday if there are eleven people in the room? (Assume nobody was born on a leap year)
Answers:
A) 0.027 B) 0.03 C) 0.076 D) 0.141 E) 0.271
First, find the probability that nobody has the same birthday: 364/365 * 363/365 * 362/365 * ... * 356/365 * 355/365 = 0.859. Then the correct answer is  1 - 0.859= 
<gadget id="calculator"> 1 - 0.859</gadget>
<output>0.141</output>
0.141, so the correct answer is 0.141
<result>D</result>
What is the probability, to 3 decimal places, that at least two people in a room share the same birthday if there are eleven people in the room? (Assume nobody was born on a leap year)