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PLEASE ANSWER!! Every second, an elevator either has a 50% chance of going up and a 50% chance of going down. If the elevator starts at floor 15, what is the probability that, after 5 seconds, the elevator is at floor 18?

THANK YOU AND SHOW YOUR WORK PLEASE!


Sagot :

Answer:

The number of ways to assing 7 floors to 5 passengers is 7⋅7⋅7⋅7⋅7

Step-by-step explanation:

The probability that, after 5 seconds, the elevator is at floor 18 is 16807.

Every second, an elevator either has a 50% chance of going up or a 50% chance of going down.

If the elevator starts on floor 15.

What is the meaning of arrangement?

An act of arranging; state of being arranged

The number of ways to assign 7 floors to 5 passengers is,

We have the arrangements,

= 7⋅7⋅7⋅7⋅7

=16807

To learn more about the arrangement visit:

https://brainly.com/question/860037