I think the median is 8 or 11
Answer:
A sample standard deviation is a statistic. This means that it is calculated from only some of the individuals in a population. Since the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population
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Answer: Choice 2. 
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Explanation:
The rule is that if 
for some positive number k, then it can be written as the compound inequality 
. This is a shorthand way of writing the two inequalities 
combined together.
note: 
is the same as 
From here, we replace k with 3
Therefore, 
turns into 
which breaks down further to
The keyword "and" is important as we can't pick one or the other. We must pick both 
and also 
Answer:
9:20
Step-by-step explanation:
25 minutes from 8:55 is 9:20
Answer:
100/3 or 33.33
Step-by-step explanation: If the perimeter of the whole figure is 220, we can use that number to solve the equations on the trapezoid.
2(2x-3) + 2(4) + 2(4x+1)
4x - 6 + 8 + 8x + 2
12x + 2
Now we have to set the equation equal to the perimeter to find the value of x
12x + 2 = 220
12x = 218
x = 109/6
Since we are only finding the length of PS, we will plug x into its equation (2x - 3).
2(109/6) - 3
109/3 - 3
109/3 - 9/3
100/3
