Question

2)
If three coins are tossed simultaneously, then find the the probability of the following events:
i) Event A: Tail appears at least twice.
ii) Event B: Head appears at the most twice.
iii) Event C: Head appears twice.
The sample space is
S= {....................} .. n(S) = 8.
i) A is the event that tail appears at least twice.
A = {....................}
n(A) = 4
n(A)
4
p (A) = n(S)
P (A)
8
ii) B is the event that head appears at the most twice.
B = {....................
n (B) = 7
n(B)
P(B) =
n(S)
P(B)
iii) C is the event that head appears twice
C = {....................)
n(C)= 3
n(C)
P(C)
P(C)=
n(S)
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Answer 1

Answer:

c is the event that head appears twise