Mathematics, 28.01.2020 16:54 kkeith121p6ujlt
Aresearcher posts a newspaper advertisement offering $20 in exchange for participation in a short study. the researcher accepts the first five people who respond to the advertisement. which of the following statements is true about the sample?
a it is not a valid sample because it is only a short study.
b it is a valid sample because money was offered to participants.
c it is a valid sample because the first five people were selected to participate.
d it is not a valid sample because it is not a random sample of the population.
Answers: 2
Mathematics, 21.06.2019 18:30
The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125
Answers: 2
Mathematics, 21.06.2019 19:30
Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab
Answers: 1
Aresearcher posts a newspaper advertisement offering $20 in exchange for participation in a short st...
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