At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?

Voluntary response sampling

Step-by-step explanation:

Given: After a customer finish his / her call, he/she will be asked to take a five-question survey about the level of service the customer received but there is a choice for customer to give response by staying on the line to answer the survey questions.

This means it is a biased form of sampling which is called as voluntary response sampling.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.