There is a 50% chance that the first color I see will be green color.
Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
Given, The traffic light on Main Street follows a cycle. It is green for 30 seconds, yellow for 5 seconds, and red for 25 seconds.
∴ The sample space N(S) = 60.
So, The probability that the first color I see is green is P(G) = N(G)/N(S).
= 30/60.
= 1/2.
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For this case, the first thing we must do is define variables.
We have then:
x: number of years
y: elevation in feet
Then, we write the equation that models the problem.
We have then:
Then. for an elevation of -31 feet we have:
From here, we clear the number of years.
We have then:
Answer:
It will take for the floor to have an elevation of -31 about 11 years.
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