There is six boxes A, B, C, D, E and F and two are selected

a) List all the selections of two boxes from the six boxes
b)what is the probability that a particular box is included
c)what is the probability that a particular box is not included

a)AB,AC,AD,AE,AF,BC,BD,BE,BF,CD,CE,CF,DE…

b) 2/6 = 1/3

c) 4/6 = 2/3

a.
AB, AC, AD, A E , AF, BC, B D, BE, BF, CD, CE ,CF, DE, D F, E F

b.
1/3


c. 2/3