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Elis [28]
3 years ago
13

A lock has two buttons: a "0" button and a "1" button.To open a door you need to push the buttons according to a preset 8-bit se

quence. How many sequences are there? Suppose you press an arbitrary 8-bit sequence; what is the probability that the door opens? If the first try does not succeed in opening the door, you try another number; what is the probability of success?
Mathematics
1 answer:
ratelena [41]3 years ago
7 0

Answer:

Step-by-step explanation:

The problem relates to filling 8 vacant positions by either 0 or 1

each position can be filled by 2 ways so no of permutation

= 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2

= 256

b )

Probability of opening of lock in first arbitrary attempt

= 1 / 256

c ) If first fails , there are remaining 255 permutations , so

probability of opening the lock in second arbitrary attempt

= 1 / 255 .

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4/5

Step-by-step explanation:

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3 years ago
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Answer:

<h2>x³ + x² - 3x - 3</h2>

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I'm assuming g*f means g times f,  so you want to multiply the two functions together.  

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3 years ago
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Seven different names were put into a hat. A name chosen 100 times. And the name Michael is chosen 9 times. What is experimental
iris [78.8K]

Answer:

Experimental probability = 9 / 100

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Step-by-step explanation:

The experimental probability of an event is written as :

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Experimental probability is based on the outcome of an experiment that has taken place.

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P = number of expected or required outcomes / total possible outcomes

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If the number of names in hat was different from 7, then the theoretical probability will change.

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4 0
3 years ago
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use the formula given:

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Answer:

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