Question

If a person told you what month he was born, would it be unusual to guess the date of his birth ( not including the year)? Justify your answer. (Note: An event is to be considered "unusual" if its probability is less than or equal to 0.05.)

Answer 1

It would be unusual.

1/30 = 0.0333

Answer 2

1/28=0.0357

1/31=0.0323

ITS UNUSUAL SINCE BOTH PROBABILITIES ARE LESS THEN 0.05%.