A local government wants to test a theory about the amount of water consumed by elderly people compared to young people. If the government uses a stratified random sample, what is an appropriate method for grouping the population? A. Group by the number of houses in each street. B. Group by ZIP code. C. Group by the amount of water stored by each house. D. Group by the members in each family.

group by each member in each family. I got a 100%

Step-by-step explanation:

group by each member in each family.

Step-by-step explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

351°f

step-by-step explanation: