Mathematics, 10.12.2021 23:10, babyambs50

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: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:30, nockturnal1993

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me

Answers: 1

continue

Mathematics, 21.06.2019 19:30, kitt90335

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Answers: 2

continue

Mathematics, 22.06.2019 00:40, ava5939

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?

Answers: 1

continue

Mathematics, 22.06.2019 05:00, jay9251

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), find r' if c c' = 0.25 and d = 6.0. a. 6 b. 12 c. 18 d. 24

Answers: 3

continue

Do you know the correct answer?

A statistics teacher had a class of 50 students, of which 31 passed. The teacher decides to draw 3...