Mathematics, 07.05.2021 14:00 smilingntn33p7pqpp
Case Detail :
The length of life of an instrument produced by a machine has a normal ditribution with a mean of 12 months and standard deviation of 2 months. Find the probability that an instrument produced by this machine will last
Q1.
between 7 and 12 months.
Q2.
less than 7 months.
Q3.
more than 5 months but less than 10 months
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 19:00
What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box
Answers: 2
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000
Answers: 1
Mathematics, 22.06.2019 01:30
Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.
Answers: 1
Case Detail :
The length of life of an instrument produced by a machine has a normal ditribution w...
History, 12.07.2019 16:30
Chemistry, 12.07.2019 16:30
Mathematics, 12.07.2019 16:30
Social Studies, 12.07.2019 16:30
Mathematics, 12.07.2019 16:30
Mathematics, 12.07.2019 16:30
Biology, 12.07.2019 16:30
Mathematics, 12.07.2019 16:30
History, 12.07.2019 16:30
Mathematics, 12.07.2019 16:30
Biology, 12.07.2019 16:30
History, 12.07.2019 16:30
Mathematics, 12.07.2019 16:30