Find the perimeter of the figure to the nearest hundredth.
1 answer:
Answer:
28.87 inch
Step-by-step explanation:
The perimeter of a figure is the sum of the length of the boundary sides of the figure surrounding it.
For the above figure the perimeter is the sum of the three sides of the rectangle and circumference of the semicircle.
Diameter of the semicircle forming in the figure is 5 inch(given)
Circumference of the semicircle forming in the figure =
:
The perimeter of the above given figure =
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Answer:
- <u>The correct statement is the first one: </u><u><em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean</em></u><em> </em>
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Explanation:
To calculate how many<em> standard deviations</em> a particular value in a group is from the mean, you can use the z-score:
Where:
is the number of standard deviations the value of x is from the mean
is the mean
is the standard deviation
Substitute in the formula:
Which means that <em>the number of blue-eyed students in Mr. Garcia's class is 2 standard deviations</em> above the mean.
Above the mean is the same that to the right of the mean, because the in the normal standard probability graph the central value is Z = 0 (the z-score of the mean value is 0), the positive values are to the right of the central value, and the negative values are to the left of the central value.
Therefore, the correct statement is the first one: <em>The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean, </em>