Answer:
{GGGG, GGGN, GGNG, GNGG, NGGG, GGNN, GNGN, GNNG, NGGN, NGNG, NNGG, GNNN, NGNN, NNGN. NNNG, NNNN}
Step-by-step explanation:
4 families are surveyed and each one reveals whether its income exceeded $43,318 in 2003. Each family has two possibilities: Having an income greater than 43,318 (G), or is not greater than $43,318 (N). We have 2⁴ = 16 different outcomes.
The possible outcomes are: GGGG, GGGN, GGNG, GNGG, NGGG, GGNN, GNGN, GNNG, NGGN, NGNG, NNGG, GNNN, NGNN, NNGN. NNNG, NNNN.
Therefore the sample space is {GGGG, GGGN, GGNG, GNGG, NGGG, GGNN, GNGN, GNNG, NGGN, NGNG, NNGG, GNNN, NGNN, NNGN. NNNG, NNNN}
