Question

Two coins are tossed together find probability of atmost one head

Answer 1

Answer:

1/2

Step-by-step explanation:

the number of outcomes are - h h ,t t ,h t ,t h =4  where t- tail and h- head

they asked probability of getting one head so..no. of outcomes  is 2

so probability = no. of outcomes/ total outcomes = 2/4 = 1/2

Answer 2

Answer:

S= { HH, HT, TH, TT }

n(S)=4

E= getting at most one head= HT,TH,TT( Because at most one head means that we need only one head or no head at all )

n( E)= 3

Therefore P(E) = n( E )/ n( S ) = 3/4

This is your answer. Hope it helps.