Answer:
a.{a b, a c, a d, b c, b d, c d, b a, d c ,d b, c a, d a, c b}
b.{a b, a c, a d, a e ,a f, a g, b c, bd,be,bf,bg,cd,ce,cf,cg,fg,ba,ca,da,ea,fa,ga,cd,db,eb,fb,gb,dc,ec,fc,gc,fe,ge,gf,de,df,dg,ed,fd,gd,ef,eg}
c.{d d, dg, g d, g g}
d.{dg, g d, gg}
Step-by-step explanation:
We have to find the sample space
a. We are given items
{a, b, c, d}
Therefore, the sample space
{a b, a c, a d, b c, b d, c d, b a, d c ,d b, c a, d a, c b}
b. Items
Therefore, the sample space
{a b, a c, a d, a e ,a f, a g, b c, bd,be,bf,bg,cd,ce,cf,cg,fg,ba,ca,da,ea,fa,ga,cd,db,eb,fb,gb,dc,ec,fc,gc,fe,ge,gf,de,df,dg,ed,fd,gd,ef,eg}
c.
Defective items (d)=4
Good items(g)=20
Therefore, the sample space
{d d, dg, g d, g g}
d.
Defective items (d)=1
Good items(g)=20
Therefore, the sample space
{d g, g d, g g}