Suppose you are conducting a survey regarding empathy among children in the Detroit school district. You obtain a cluster sample of 24 schools within the Detroit school district and sample all sophomore students in the randomly selected schools. The survey is administered by the parents. The survey has bias. Which of the following best describes the problem?A. Sampling bias B. Response bias C. Nonresponse

B. Response Bias

explanation:

Response Bias occurs when the respondent inadequately or falsely respond to a question. This is very common when carrying out well structure questionnaire/survey or interviews. Respondents tends to give answers that are "socially acceptable" like what is expected of rather than what really is.

The response bias is also dependent on who is administering the survey. In this case, the survey is been administered by the parent to the respondent who are their children. The children may not want to give answers that are not in the "liking" of their parents or that are not accepted by their parents or may be hiding a few information that they don't want to tell their parents, so they end up giving false information.

for b its (t) and c its (d)

step-by-step explanation:

when functions are first introduced, you will probably have some simplistic "functions" and relations to deal with, usually being just sets of points. these won't be terribly useful or interesting functions and relations, but your text wants you to get the idea of what the domain and range of a function are. small sets of points are generally the simplest sorts of relations, so your book starts with those.

step-by-step explanation:

state the domain and range of the following relation. is the relation a function?

{(2, –3), (4, 6), (3, –1), (6, 6), (2, 3)}

the above list of points, being a relationship between certain x's and certain y's, is a relation. the domain is all the x-values, and the range is all the y-values. to give the domain and the range, i just list the values without duplication:

domain: {2, 3, 4, 6}

range: {–3, –1, 3, 6}

(it is customary to list these values in numerical order, but it is not required. sets are called "unordered lists", so you can list the numbers in any order you feel like. just don't duplicate: technically, repetitions are okay in sets, but most instructors would count off for this.)

while the given set does indeed represent a relation (because x's and y's are being related to each other), the set they gave me contains two points with the same x-value: (2, –3) and (2, 3). since x = 2 gives me two possible destinations (that is, two possible y-values), then this relation is not a function.

note that all i had to do to check whether the relation was a function was to look for duplicate x-values. if you find any duplicate x-values, then the different y-values mean that you do not have a function. remember: for a relation to be a function, each x-value has to go to one, and only one, y-value.

state the domain and range of the following relation. is the relation a function?

{(–3, 5), (–2, 5), (–1, 5), (0, 5), (1, 5), (2, 5)}

i'll just list the x-values for the domain and the y-values for the range: