Mathematics, 17.12.2020 16:40 brittanyjacob8
According to the National Institute of Health, about 37% of high school seniors have vaped in the past year. Suppose that a survey contacts an SRS of 400 high school seniors and calculates the sample proportion, p , in this sample who have vaped in the past year. What is the probability, in an SRS of 400 high school seniors, that between 35% and 40% of them have vaped in the past year?
Answers: 2
Mathematics, 21.06.2019 17:30, nayellisoto15
Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil
Answers: 1
Mathematics, 21.06.2019 23:50, Angel4345
Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas
Answers: 3
Mathematics, 22.06.2019 00:40, Hjackson24
What is the interquartile range (iqr) of the data set represented by this box plot?
Answers: 3
According to the National Institute of Health, about 37% of high school seniors have vaped in the pa...
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