Mathematics, 09.08.2019 06:10 minecraft56
(08.01)angela wants to know how many families in her neighborhood plan to attend the parade. she puts all 120 of the neighborhood addresses in a hat and draws a random sample of 30 addresses. she then asks those families if they plan to attend the parade. she finds that 40% of the families plan to attend the parade. she claims that 40% of the neighborhood families would be expected to attend the parade. is this a valid inference?
yes, this is a valid inference because the 30 families speak for the whole neighborhood
yes, this is a valid inference because she took a random sample of the neighborhood
no, this is not a valid inference because she did not take a random sample of the neighborhood
no, this is not a valid inference because she asked only 30 families
Answers: 1
Mathematics, 21.06.2019 21:30, jstringe424
This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )
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Mathematics, 21.06.2019 23:30, blueval3tine
Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?
Answers: 1
(08.01)angela wants to know how many families in her neighborhood plan to attend the parade. she put...
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