The probability of “the last day of a month is Sunday”
A) 2/7
B) 1/7
C) 3/7
D) 4/7
Call
Correct option is (B) 1/7
Last day of a month can be any of 'Sunday, Monday, Tuesday, Wednesday, Thursday, Friday and Saturday'.
\(\therefore\) Total outcomes is n(S) = 7
The favourable outcomes for the event that "the last day of a month is Sunday" is only Sunday.
\(\therefore\) Number of favourable outcome is n(E) = 1
\(\therefore\) The probability of "the last day of a month is Sunday" is \(P(E)=\frac{n(E)}{n(S)}=\frac17.\)
Call