Mathematics, 22.08.2019 22:30 jskdkfjf
Asurveyor wants to know how many shoppers at a mall like to read books. he surveys 100 people coming out of a bookstore at the mall. why is the sample biased?
a.
there are not enough people in the sample.
b.
people who shop in bookstores are likely to read more books than those who do not.
c.
it is unlikely that people who shop in bookstores are interested in surveys.
d.
the surveyor did not sample the entire population at the mall.
Answers: 1
Mathematics, 21.06.2019 22:00
Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b
Answers: 1
Asurveyor wants to know how many shoppers at a mall like to read books. he surveys 100 people coming...
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