jojo8617
01.09.2019 •
Mathematics
Which of the following statements about measures of validity is true?
a.
statistics, survey research, and scientific data can contain bias.
b.
statistics, survey research, and scientific data never contain bias.
c.
statistics and survey research always contain bias, but scientific data does not contain bias.
d.
survey research can contain bias, but statistics and scientific data do not contain bias
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Ответ:
Ответ:
x=3
Step-by-step explanation:
The ratios need to be the same
AB CB
=
AD ED
3 x
=
3+9 12
3 x
=
12 12
X must equal 3