subject
Mathematics, 29.01.2020 03:53 shsbbdDnsgs3913

Adam has two brothers, ben and chris, and one sister, daisy. on any given day, ben calls adam with probability 0.3, chris calls adam with probability 0.4, and daisy calls adam with probability 0.7. let x be the number of siblings that call adam tomorrow.

a)find the moment generating function of x, the number of siblings that call adam tomorrow.

b)assume that all the calls are made independently. calculate the mean and variance of x, the number of siblings that call adam tomorrow.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 16:20
An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.
Answers: 2
question
Mathematics, 21.06.2019 17:40
Follow these steps using the algebra tiles to solve the equation βˆ’5x + (βˆ’2) = βˆ’2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =
Answers: 1
question
Mathematics, 21.06.2019 18:30
Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 βˆ’2.00 8.4 βˆ’8.4
Answers: 2
question
Mathematics, 21.06.2019 20:30
Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2
Answers: 2
You know the right answer?
Adam has two brothers, ben and chris, and one sister, daisy. on any given day, ben calls adam with p...
Questions
Questions on the website: 13722360