Mathematics, 30.03.2020 17:31 andrewmena05
A school newspaper reporter decides to randomly survey 13 students to see if they will attend Tet (Vietnamese New Year) festivities this year. Based on past years, she knows that 19% of students attend Tet festivities. We are interested in the number of students who will attend the festivities.
a. In words, define the random variable X.
b. List the values that X may take on.
c. Give the distribution of X. X ~ (,)
d. How many of the 13 students do we expect to attend the festivities?
e. Find the probability that at most four students will attend.
f. Find the probability that more than two students will attend.
Answers: 2
Mathematics, 21.06.2019 15:40
The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?
Answers: 3
Mathematics, 21.06.2019 17:00
Write an algebraic expression for the word expression the quotient of c and 8
Answers: 1
Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
A school newspaper reporter decides to randomly survey 13 students to see if they will attend Tet (V...
Physics, 10.05.2021 21:20
History, 10.05.2021 21:20
Mathematics, 10.05.2021 21:20
English, 10.05.2021 21:20
History, 10.05.2021 21:20
English, 10.05.2021 21:20
Computers and Technology, 10.05.2021 21:20
Mathematics, 10.05.2021 21:20
Mathematics, 10.05.2021 21:20
Mathematics, 10.05.2021 21:20
Mathematics, 10.05.2021 21:20
Mathematics, 10.05.2021 21:20