15 points for 3 questions fast

1. a news reporter wants to estimate the percentage of registered voters who will vote for a particular candidate in an upcoming election.

which statement describes a method that will him accurately estimate this percentage?

he could take a random sample of registered voters, and then calculate the percentage of the sample who will vote for the particular candidate.

he could ask his readers to respond to a survey that asks which candidate the reader will vote for and then calculate the percentage of people who say that they will vote for the particular candidate.

he could ask employees at the newspaper which candidate each will vote for, and then calculate the percentage who will vote for the particular candidate.

he could contact every resident in the town, ask whether the resident will vote for the particular candidate, and then calculate the percentage of residents who say they will vote for the particular candidate.

2. a company sells hockey sticks. members of the company's research group would like to estimate the percentage of their customers who are left-handed. they plan to survey a sample of customers.

which method should the members use to select the sample?

select the next 45 customers who place an order

randomly select 45 customers from a list of all customers

randomly select 45 customers from a list of customers who have purchased left-handed hockey sticks

select the next 45 customers who place an order and are left-handed

3. a city councilman would like to survey city residents about their favorite sports so he can determine whether residents are interested in having a sports team in their city.

what is the best way the city councilman could select the sample?

randomly select some city residents from a list of those who love sports

randomly select some city residents from those participating in an upcoming running race

randomly select some city residents from a list of all residents

randomly select some city residents from a list of residents who have a favorite sports team nearby