Question

a coin is tossed 3 times write the event a of getting at least 2 heads and even be for of getting no Head Right event A and B also write the number of simple points

Answer 1

p(event A)=3/6=1/2
p(event B)=1/6.

Answer 2

3 coins are tossed so,
total no. of elementary event = 8

(i) conditions of getting at least two Heads are
{HHH, HHT, HTH, THH}
hence Total no. of favorable events is 4

so P(Event A) = 4/8 = 1/2

(ii) condition of getting no head is {TTT}
so, P(event B) = 1/8


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