Statistics

17. If a family has 4 children, what is the probability they have at least one girl: 18. In the town Pretend, 40% of the population is White, 30% is Black, 20% is Hispanic and 10% is other. a. If one person is randomly selected, what is P (B) = P (W or B) = b. If 12 people are randomly selected, what is P (all are W) = c. If 12 people are randomly selected what is P (none are H) = d. If 12 people are selected, what is the probability that the first White selected was on the 5th draw? 19. A bag has 5 red candies, 2 yellow candies and 3 blue candies. If 3candies are drawn without replacement, what is P(all R) = P(all Y) = P(no Y) = 20. A bag has 2 red candies and 2 yellow candies, if you randomly pick 2 candies without replacement, what is the probability that they match: Use the following demographic from Pretend town to answer questions 21 to 25: White Black Hispanic Male 220 164 46 Female 236 160 74 If one person is randomly selected, determine 21. P (H) = P (not H)= P (F)= 22. P (B and F) = P (B or F) = P (B or H)= 23. P(F[H) = P(H |F) = P(M |F) = If two people are randomly selected without replacement, determine 24. P(both F)= P (none B) = P (both BF) = If 4 people are randomly selected without replacement, determine 25. P(all W) = P (all F) = P(at least one F) =