An article noted that chocolate is rich in flavonoids. the article reports that "regular consumption of foods rich in flavonoids may reduce the risk of coronary heart disease." the study received funding from a candy company and a chocolate manufacturers association. identify and explain at least one source of bias in the study described. then suggest how the bias might have been avoided. choose the correct answer below. a. since the sample is self-selected, there is a definite participation bias in this study. the researchers should randomly select the subjects of the study. b. the questions used in the study might have caused the respondents to give inaccurate or dishonest responses. the question wording should be changed to be more neutral. c. the data do not seem to support the claims being made by the article. the article's author should consult an expert to make sure that he or she is correctly interpreting the study's results. d. the researchers may have been more inclined to provide favorable results because funding was provided by a party with a definite interest. the bias could have been avoided if the researchers were not paid by the candy company and the chocolate manufacturers.

answer:

i believe it would be a

step-by-step explanation:

hope this

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest

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: