Exclude leap years from the following calculators. (a) Compute the probability t
ID: 3182795 • Letter: E
Question
Exclude leap years from the following calculators. (a) Compute the probability that a randomly selected person does not have a birthday on October 13. (b) Compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (c) Compute the probability that a randomly person does not have a birthday on the 30th day of a month. (d) Compute the probability that a randomly selected person was not born in February. (a) The probability that a randomly selected person does not have a birthday on October 13 is . (b) The probability that a randomly selected person does not have a birthday on the 1st day of a month is . (c) The probability that a randomly selected person does not have a birthday on the 30th day of a month is . (d) The probability that a randomly selected was not born in February is .Explanation / Answer
Total number of days in a non leap year = 365
a)Probability that a random person does not have birthday on october 13 = 364/365 = 0.997
b)Probability that a random person does not have birthday have on 1st day of a month
As 12 months , we have 12 first days in a year
hence P = (365-12)/365 = 0.967
c)Probability that a random person does not have birthday have on 30th day of a month
Except february, rest all months have 30 days...hence we have 11 30th days
hence P = (365-11)/365 = 0.969
d)Probability that a random person does not have birthday in the february month = (365-28)/365 = 0.923
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