I'll mark
a video store surveys people to find out what new videos to offer. in the su...
Mathematics, 10.10.2019 22:00 gungamer720
I'll mark
a video store surveys people to find out what new videos to offer. in the survey, employees question every fifth person who leaves the store. is that method going to result in a representative sample?
a. yes. the store wants to know its customers' opinions.
b. no. the sample only includes people leaving the video store.
c. yes. the sample is representative of all the people in the city.
d. no. the sample is not representative of all the people in the city.
Answers: 2
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The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest
Answers: 3
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Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?
Answers: 1
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The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse
Answers: 1
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