Answer:
300 doors.
Step-by-step explanation:
1.5 minutes for 1 door.
7.5 hours for 300 doors.
7.5 hours = 450 minutes.
They y-axis represents the -3 now all that you need to do is line it up to -3 and 3 in the graph
The expected value is the mean of the overall observed value or random value. In other words, it is the average of the observed values.
The expected value, E(x) of the given observation is 185
The given parameters can be represented as:
The following formula calculates the expected value:
So, we have:
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The slope of the parallel line is undefined and the slope of the perpendicular line is 0
<h3>How to determine the slope?</h3>
The equation is given as:
x = 1
The above do not have any y value.
This means that the slope of the line is undefined
i.e.
m = undefined
The slope of the parallel line is:
Slope = m
This gives
Slope = undefined
The slope of the perpendicular line is:
Slope =-1/m
This gives
Slope = -1/undefined
Slope = 0
Hence, the slope of the parallel line is undefined and the slope of the perpendicular line is 0
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