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 13:30
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
Answers: 1
Mathematics, 21.06.2019 17:30
During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer
Answers: 3
Asurveyor wants to know how many shoppers at a mall like to read books. he surveys 100 people coming...
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