A measure of the variation around the estimate of the mean.
The standard deviation is a statistic that lets you know how tightly all the subjects are clustered around the mean in a set of data. A single standard deviation away from the mean in either of the directions accounts for somewhere around 68 % of data. If two standard deviations are away from the mean, it accounts for around 95% of data. If three standard deviations are away it accounts for 99% of the data.
1) The total range of variation in the dataset is called RANGE.
3) A measure of the variation around the estimate of the mean is SEM (STANDARD ERROR OF THE MEAN).
4) The most common value observed (highest frequency) is MODE.
Answer:
-2 < x < 4/3
Step-by-step explanation:
A graphing calculator can show you the solution. I like to recast the equation as a comparison to zero, since a graphing calculator often can display zeros of a function easily. Here that means ...
|6x +2| -10 < 0
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If you want to solve this by hand, you can "unfold" the absolute value to get ...
-10 < 6x +2 < 10
-12 < 6x < 8 . . . . . . subtract 2
-12/6 < x < 8/6 . . . . divide by 6
-2 < x < 4/3 . . . . . . simplify
This graphs on the number line as a solid line between open circles at -2 and 4/3. On the attached graph, the boundary values are shown as dotted blue lines, and the solution space is shown in blue.
Answer:
6 and a half miles per hour. Hope it helps!
Step-by-step explanation:
Answer:
$0.29 per orange
Step-by-step explanation:
3.48 / 12 = 0.29
Calculate R8 for f (x) =10−x
over [3,5]. Here is the solution:
R8 = ∫ [3..5] (10 - x) dx
= [ (50 - 25/2 ) - ( 30 - 9/2 ) ]
= ( 75/2 – 51/2 ) = 24/2
<span>= 12</span>
