contestada

Two dice are thrown once. Find the probability of obtaining :
(i) a total of 6
(ii) a total of 10

Respuesta :

Total possible outcomes in throwing two dice = 6×6 = 36

(i)The favourable outcomes of the event ", a total of 6" are,
(1,5), (2,4), (3,3), (4,2), (5,1)
Thus, the total number of favourable outcomes = 5

[tex]P = \frac{ Number \: of \: favourable \: outcomes }{ Total \: number \: of \: possible \: outcomes} [/tex]
[tex]
P (the \: total \: of \: 6) = \frac{5}{36} [/tex]

(ii) The favourable outcomes to the event "a total of 10" are (4,6), (5,5), (6,4)
Thus, the total number of favourable outcomes = 3

[tex]P = \frac{ Number \: of \: favourable \: outcomes }{ Total \: number \: of \: possible \: outcome } [/tex]
[tex]

Hence, P(total \: of \: 10) = \frac{3}{36} = \frac{1}{12} [/tex]