Mathematics, 06.09.2019 19:10 larey
As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and 300 red marbles. she tells the students the bag contains 800 total marbles, and asks her students to determine how many red marbles are in the bag without counting them. a student randomly draws 150 marbles from the bag. of the 150 marbles, 53 are red. the data collection method can best be described as census clinical study survey controlled study
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Mathematics, 21.06.2019 21:30
Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)
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Mathematics, 22.06.2019 02:30
Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.
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Mathematics, 22.06.2019 03:00
What is the slope of the line that has an equation of y equals x -3
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Mathematics, 22.06.2019 04:20
The weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to ac voltage. the values of the parameters depend on the voltage and temperature; suppose α = 2.5 and β = 190. (a) what is the probability that a specimen's lifetime is at most 250? less than 250? more than 300? (round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) what is the probability that a specimen's lifetime is between 100 and 250? (round your answer to four decimal places.) (c) what value is such that exactly 50% of all specimens have lifetimes exceeding that value? (round your answer to three decimal places.) hr
Answers: 2
As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and...
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