0/3 Oliv (a) A host on a cruise ship wants to collect data on the time passengers spend at various activities on board. Which of the following best describes a random sample of passengers? O The host selects the first 90 passengers who board because these passengers are easily accessible. O The host forms groups of 30 passengers based on the passengers' ages. Then, he randomly chooses 3 groups and selects all of the passengers in these groups. O The host assigns each passenger a different number. Using a random number table, he draws 90 of those numbers at random. Then, he selects the passengers assigned to the drawn numbers. Every set of 90 passengers is equally likely to be drawn using the random number table. (b) A facilities supervisor at a sports stadium wants to rate the condition of the seats at the stadium. Which of the following best describes a stratified sample of seats? O The supervisor forms groups of 10 seats based on the sections the seats are in. Then, she selects all of the seats in 5 randomly chosen groups. O The supervisor uses a computer program to draw 50 seats at random and selects these seats. Every set of 50 seats is equally likely to be drawn by the computer program. The supervisor forms 2 groups of seats based on the dates the seats were last replaced. Then, she selects 25 seats at random from each group. (c) A city manager wants to poll residents about a park renovation. Which of the following best describes a convenience sample of residents? The first 54 residents who walk into city hall one day are easily accessible. So, the city manager selects these residents. The city manager takes a list of the residents and selects every 6 resident until 54 residents are selected. The city manager forms 6 groups of residents based on the residents' incomes. Then, she selects 9 residents at random from each group