Identify the sampling designs that use voluntary response sampling. Check all that apply. A pharmaceutical company advertises for subjects to participate in an online survey about insulin pumps for diabetics.

An online poll is created for sports fans to vote on the winner for the Super Bowl.

Each employee is given a mandatory survey to complete about health benefits.

After each customer service call, callers are asked to stay on the line to complete a brief satisfaction survey.

A census taker randomly calls homes to gather data about household income and family demographics.

A used car dealer surveys potential customers about the type of car they are interested in so he can plan his future inventory.

Step-by-step explanation:  

A voluntary response sample is defined as a type of sample made up of self-chosen participants. These participants volunteer to take part in different research studies to share their opinions on topics that interest them. A voluntary response sample is made up of persons who volunteer to take research surveys.

The sampling designs that use voluntary response sampling are #1, #2, #4, and #6

Step-by-step explanation:

Participating in an online survey, online voting polls, and requesting for others to complete a survey are all sampling designs that use voluntary response samplings.

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

answer:   rotate 270° clockwise about (7, 1) and reflect across the line x = 7

step-by-step explanation:

because i took test