Mathematics, 31.03.2021 18:10 jacesmokesloud7254
1. Reese believes the students in her large high school spend way too much time on their phones and other devices. To investigate, she estimates the mean amount of daily screen time for all the students in her school by taking a random sample of 50 students. She finds the average daily screen time for the members of the sample is x = 7.1 hours with a standard deviation of s, = 2.4 hours. (a) Construct and interpret a 90% confidence interval for the mean amount of daily screen time for all the students in this school. Snooifin name of the procedure:
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Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.
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The point (-7, -24) is on the terminal ray of angle 0 which is in standard position. a student found the six trigonometric values for angle e. the student's answers are shown. which value(s) are incorrect? sin(8) cos(8) 24 tan(0) sin(0)=25 cos(0) -- tan(ⓡ) - - 24 csc(o)=2 sec(0) --25 cot(6) - za csc(o) sec(0) cot(0) done
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Is experimental probibilty the same as the observed frequency in math? i need the answer asap!
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1. Reese believes the students in her large high school spend way too much time on their phones and...
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