Question Number 57071 by necx1 last updated on 29/Mar/19
Commented by necx1 last updated on 29/Mar/19
$${please}\:{help} \\ $$
Answered by tanmay.chaudhury50@gmail.com last updated on 30/Mar/19
![tetrahedron has four face.each face is equilaterl trianngle.so each tetrahedron has face value (1,2,3,4)[it my view] a)sample space {1,2,3,4}×{1,2,3,4}=16 ={11,12,13,14,21,22,23,24,31,32,33,34,41,42,43,44} =16 b)two outcome are same{11,22,33,44}→4 c)sum is 6 {24,33,42}→03 d)sum is 9 {φ}→null set pls check](https://www.tinkutara.com/question/Q57098.png)
$${tetrahedron}\:{has}\:{four}\:{face}.{each}\:{face}\:{is}\:{equilaterl} \\ $$$${trianngle}.{so}\:{each}\:{tetrahedron}\:{has}\:{face}\:{value} \\ $$$$\left(\mathrm{1},\mathrm{2},\mathrm{3},\mathrm{4}\right)\left[{it}\:{my}\:{view}\right] \\ $$$$\left.{a}\right){sample}\:\:{space}\:\left\{\mathrm{1},\mathrm{2},\mathrm{3},\mathrm{4}\right\}×\left\{\mathrm{1},\mathrm{2},\mathrm{3},\mathrm{4}\right\}=\mathrm{16} \\ $$$$=\left\{\mathrm{11},\mathrm{12},\mathrm{13},\mathrm{14},\mathrm{21},\mathrm{22},\mathrm{23},\mathrm{24},\mathrm{31},\mathrm{32},\mathrm{33},\mathrm{34},\mathrm{41},\mathrm{42},\mathrm{43},\mathrm{44}\right\} \\ $$$$=\mathrm{16} \\ $$$$\left.{b}\right){two}\:{outcome}\:{are}\:{same}\left\{\mathrm{11},\mathrm{22},\mathrm{33},\mathrm{44}\right\}\rightarrow\mathrm{4} \\ $$$$\left.{c}\right){sum}\:{is}\:\mathrm{6} \\ $$$$\left\{\mathrm{24},\mathrm{33},\mathrm{42}\right\}\rightarrow\mathrm{03} \\ $$$$\left.{d}\right){sum}\:{is}\:\mathrm{9}\:\left\{\phi\right\}\rightarrow{null}\:{set} \\ $$$${pls}\:{check} \\ $$$$ \\ $$
Commented by necx1 last updated on 30/Mar/19
$${Thank}\:{you}\:{boss} \\ $$