Mathematics, 14.04.2020 22:36 cactuskatherine
At Brighton Middle School, Mr. Yule asked 50 randomly selected students from each grade level about their favorite subject,
and 12 chose science. He used this data to draw the inference that about 25% of middle school students will indicate science
is their favorite subject. If there are 200 students all together, did he make a reasonable inference?
O No. Mr. Yule's sample is biased and too small to be representative of the population
O Yes, Mr. Yule's sample is small and biased, so it is representative of the population
O No, Mr. Yule's percentage is too large. He should have used 6%.
O Yes, Mr. Yule's sample is random and representative of the population
Answers: 2
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
Mathematics, 22.06.2019 00:00
Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59 a. 14%, 62%, 23% b. 15%, 60%, 35% c. 10%, 70%, 20% d. 11%, 62%, 27%
Answers: 3
Mathematics, 22.06.2019 01:10
What is the angle measure, or angle of depression, between this bird and the bird watcher?
Answers: 1
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