ProbabilityMedium
Question
A license plate is 3 letters (of English alphabets) followed by 3 digits. If all possible license plates are equally likely, the probability that a plate has either a letter palindrome or a digit palindrome (or both), is -
Options
A.
B.
C.
D.none
Solution
Event (A) → Plate has letter is palindrome
Event (B) → Plate has digit is palindrome
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
=
Event (B) → Plate has digit is palindrome
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
=
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