Question

Find the indicated probability. 23) The following contingency table provides joint people by career and retirement. age at retirement.eS a joint frequency distribution for a group of retired 25) Age at Retirement 50-55 56-60 61-65 Over 65 Total Attorney 96 40 191 Career College Professor 11 32 92 34169 C2 Secretary 21 4563 49 178 Store Clerk 18 44 70 50 182 Total Suppose one of these people is selected at random. Compute P(A2 or C3). A) 0.062 B) 0.481 C) 0418 D) 0.253 Construct the joint probability distribution corresponding to the given contingency table. 24 24) An auto insurance company was interested in investigating accident rates for drivers in different age groups. The following contingency table was based on a random sample of drivers and classifies drivers by age group and number of accidents in the past three years Age Group < 25 25-49 >45 | Total G1 G2G3 197 153 286 536 1 63 6375 201 ota 180 220 375 775

Answer 1

P(A_2 or C_3) = A_2 + C_3-(A_2 Intersection C_3)/Total = 168 + 178-45/720 = 0.418 c)0.418