Mathematics, 25.10.2019 03:43 steliosceltics2541
In a popular tale of wizards and witches, a group of them finds themselves in a room with unmarked doors which change position, making it impossible to determine which door is which when the room is entered or reentered. suppose that there are 4 doors in the room. one door leads out of the building after 3 hours of travel. the second and third doors return to the room after 3.5 and 5 hours of travel, respectively. the fourth door leads to a dead end, the end of which is a 2.5 hour trip from the door. if the probabilities with which the group selects the doors are 0.2, 0.1, 0.2, and 0.5, respectively, what is the expected number of hours before the the group exits the building? e[number of hours]=
Answers: 3
Mathematics, 21.06.2019 15:50
Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?
Answers: 1
Mathematics, 22.06.2019 04:30
Arandom sample of size n 64 is taken from a population with population proportion p 0.38 describe the sampling distribution of p. draw a graph of this probability distribution with its a. mean and standard deviation. b. what is the probability that the sample proportion is greater than 0.5? what is the probability that the sample proportion is less than 0.3? d. what is the probability that the sample proportion is between 0.35 and 0.45?
Answers: 1
Mathematics, 22.06.2019 05:30
What is the solution to the system of equations? 10x+3y=8 -9x-y=-20 (11, 1) (1, 11) (–1, 11) (11, –1)'
Answers: 1
In a popular tale of wizards and witches, a group of them finds themselves in a room with unmarked d...
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