Mathematics, 23.10.2019 22:00, nothingworksoutforme
Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in rural areas, considered safe. suppose that the standard deviation is 1.8 hours and the amount of time spent alone is normally distributed. we randomly survey one 4-year-old living in a rural area. we are interested in the amount of time the child spends alone per day. part (a) in words, define the random variable x.
a) the number of 4-year-old children that live in rural areas
b) the time (in hours) a child spends unsupervised per day
c)the number of people that live in rural areas
d)the time (in hours) a 4-year-old spends unsupervised per day
e)the time (in hours) a 4-year-old spends unsupervised per week
part i: give the distribution of x.
x ~
Answers: 3
Mathematics, 21.06.2019 16:00, sharondot2398
Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?
Answers: 1
Mathematics, 21.06.2019 21:00, izaiahfieods
Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list
Answers: 1
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