Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes may incur multiple types of bias. A political poll is conducted by contacting people on landline phones. The pollstersdid not keep track of how many people they contacted who did not respond. A political poll is administered by contacting people on landline phones. The pollsterscontacted 5000 households, and 1255 individuals agreed to speak with the caller. A political poll is conducted by asking the listeners of a radio program to call in. A political poll asks the question, "If you found out that Candidate A did notgraduate from high school, would that change your opinion of how unintelligentCandidate A is?"

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!

what are the answer choices given for this problem?

is this the complete