random variables and their probability distributions When turned on, each of the three switchesin the diagram below works properly withprobability 0.9. If a switch is working properly,current can flow through it when it is turnedon. Find the probability distribution for Y, thenumber of closed paths from a to b, when allthree switches are turned on.1.a .2. It was observed that 40% of the vehiclescrossing a certain toll bridge are commercialtrucks. Four vehicles will cross the bridge in thenext minute. Find the probability distribution forX, the number of commercial trucks among thefour, if the vehicle types are independent of oneanother.

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When turned on, each of the three switches in the diagram below works properly with probability 0.9. If a switch is working properly, current can flow through it when it is turned on. Find the probability distribution for Y, the number of closed paths from a to b, when all

When turned on, each of the three switches in the diagram below works properly with probability 0.9. If a switch is working properly, current can flow through it when it is turned on. Find the probability distribution for Y, the number of closed paths from a to b, when all

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

random variables and their probability distributions

When turned on, each of the three switches
in the diagram below works properly with
probability 0.9. If a switch is working properly,
current can flow through it when it is turned
on. Find the probability distribution for Y, the
number of closed paths from a to b, when all
three switches are turned on.
1.
a .
2.

It was observed that 40% of the vehicles
crossing a certain toll bridge are commercial
trucks. Four vehicles will cross the bridge in the
next minute. Find the probability distribution for
X, the number of commercial trucks among the
four, if the vehicle types are independent of one
another.

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