Mathematics, 10.12.2021 23:00 jordeng9369
A statistics teacher had a class of 50 students, of which 31 passed.
The teacher decides to draw 3 students WITHOUT REPLACEMENT to ask their opinion about the subject.
Let Y be the total number of students approved in the course among those drawn by the teacher to give his opinion.
Under these conditions, do what is asked:
1. Determine the probability function of Y
2. Determine the mean and variance of Y
Answers: 3
Mathematics, 21.06.2019 17:00
Ataxi company charges $2.25 for the first mile and then $0.20 per mile for each additional mile, or f = $2.25 + $0.20(m - 1) where f is the fare and m is the number of miles. if juan's taxi fare was $6.05, how many miles did he travel in the taxi? if juan's taxi fare was 7.65, how many miles did he travel in taxi
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Mathematics, 21.06.2019 17:30
Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10
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Mathematics, 21.06.2019 18:30
Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap
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Mathematics, 21.06.2019 19:30
I'm confused on this could anyone me and show me what i need to do to solve it.
Answers: 1
A statistics teacher had a class of 50 students, of which 31 passed.
The teacher decides to draw 3...
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