Question

Two coins are tossed simultaneously. Write the sample space(S) of the following event A using set notation and n(A), where A is the event of getting at the most one head.

Answer 1

Sample space$=\{HH,HT,TH,TT\}$

$n\left(S\right)=4$

$A=\{HT,TH,TT\}$

$n\left(A\right)=3$