Which of the following situations represents choosing a random sample?

Make a list of everyone in the population and put their names in order of age. Choose the ten youngest and ten oldest people.
Make a list of everyone in the population and put their names in alphabetical order. Choose every twelfth name.
Assign each person of the population a number. Put all the numbers into a bowl and choose ten numbers.

Bonnie and bobby are saving money for a vacation. each friend starts with an amount and also saves a specific amount each week. bonnie created a table to show the total she has saved at the end of each week.. weeks 0 1 2 3 4 5 6 7 8 amount saved 12 16 20 24 28 32 36 40 44 bobby came up with the following equation to show the total, y, he has saved at the end of each week, x. y = 12x + 4 compare the rate at which each friend saves money. select the correct answer from the drop-down menu to complete the statement. the rate at which bobby is adding to his savings each week is $ more than the rate at which bonnie is adding to her savings each week.