Help Evaluate when x=3.1 2x + 1.5x
1 answer:
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Answer:
a) Standard Deviation = 2.74
b) Significantly Low = values below 24.52 (or equal)
Significantly High = values above 35.48 (or equal)
Step-by-step explanation:
This is binomial probability distribution problem.
Where n = 40 [groups of 40, total trials]
p = 0.75 [probability of success]
a)
The formula for standard deviation is:
We know n = 40 and p = 0.75, so the standard deviation is:
b)
the range rule of thumb tells us that usual range of values is within 2 standard deviation of the mean. First let's calculate mean.
We know,
Mean = n * p = 40 * 0.75 = 30
So
Mean - 2* Standard Deviation = 30 - 2(2.74) = 24.52
and
Mean + 2* Standard Deviation = 30 + 2(2.74) = 35.48
Significantly Low = values below 24.52 (or equal)
Significantly High = values above 35.48 (or equal)
Answer:
C.<em> </em><em>The quotient of the natural logarithm of 2 and e.</em>
Step-by-step explanation:
The position of a particle on the x-axis at time t, t > 0, is given by
with t is in seconds and s(t) is in feet.
The rate of change is,
=
So rate of change of position or average velocity, for e ≤ t ≤ 2e will be,
Therefore, option C is the correct answer.