One year the GSS asked subjects whether they are a member of an environmental group (variable GRNGROUP) and whether they would be very willing to pay higher taxes to protect the environment (variable GRNTAXES). The table shows results. Pay Higher Taxes Yes No Total Member of Environmental Yes 56 24 80 Group No 307 438 745 Total 363 462 825 Estimate the probability that a randomly selected American adult is not a member of an environmental group 0.097 0.903 . 0.588 0.531