Mathematics, 10.10.2019 03:00 brockhull
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. let x=the number of days until theprisoner reaches freedom. a. assuming that the prisoner will always select doors 1, 2, and 3 with probabilities0.5, 0.3, 0.2, make an argument that x is a proper random variable (i. e. theprisoner will not be trapped in his cell additionally, what is theexpected number of days until he reaches freedom? b. assuming that the prisoner is always equally likely to choose among those doorsthat he has not used, what is the expected number of days until he reachesfreedom? (in this version, for instance, if the prisoner initially tries door 1, thenwhen he returns to the cell, he will now select only from doors 2 and 3.)c. for parts (a) and (b) find the variance of the number of days until the prisonerreaches freedom.
Answers: 1
Mathematics, 21.06.2019 15:30, schoolboyq3017
The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y
Answers: 1
Mathematics, 21.06.2019 17:30, davidgarcia522083
Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9
Answers: 3
Mathematics, 21.06.2019 23:30, puppylover72
Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile
Answers: 1
Mathematics, 22.06.2019 01:00, sdwhitneyhillis
Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
Answers: 1
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns...
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