Question

Due in 12 hours, 57 minutes. Due Mon 01/13/2020 8:30 am A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below. better same worse 44 38 104 Republican Democrat 12 87 137 21 90 118 none Express your answers as a decimal and round to the nearest 0.001 (in other words, type 0.123, not 12.3% or 0.123456). If we randomly select one of the adults who participated in this study, compute: P(affiliated with neither party) = %3D P(same) = P(samejaffiliated with neither party) = %3D P(affiliated with neither party same) = P(affiliated with neither party and same) = License Points possible: 5 Unlimited attempts. Submit 7:34 PM

Answer 1

Total no. of adults = 38+12+21+104+87+90+44+137+118 = 651.

(i) No. of adults who are affiliated with neither party = 21+90+118 = 229.
Hence, Prob.(affiliated with neither party) = 229/651 = 0.352

(ii) No. of adults who are same = 104+87+90 = 281.
Hence, Prob.(same) = 281/651 = 0.432

(iii) No. of adults who are affiliated with neither party = 21+90+118 = 229.
No. of adults who are same and affiliated with neither party = 90.
Hence, Prob.(same | affiliated with neither party) = 90/229 = 0.393

(iv) No. of adults who are same = 104+87+90 = 281.
No. of adults who are affiliated with neither party and same = 90.
Hence, Prob.(affiliated with neither party | same) = 90/281 = 0.320

(v) No. of adults who are affiliated with neither party and same = 90.
Hence, Prob.(affiliated with neither party and same) = 90/651 = 0.138