Help please my moms going to kill me if I don’t get this right
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For the given sample, mean = 1.306 and standard deviation = 0.1826.
As given ,
Given sample
: 1.38, 1.18, 1.47, 1.35, 1.52, 1.23, 1.62, 1.17, 1.03, 1.11
Total samples N=10
Mean
= ( 1.38+1.18+ 1.47+ 1.35+ 1.52+ 1.23+ 1.62+ 1.17+ 1.03+1.11)/ 10
= (13.06 ) /10
= 1.306
= (1.38 -1.306)² + (1.18 -1.306)² +(1.47 -1.306)² +(1.35 -1.306)² +(1.52 -1.306)² +(1.23 -1.306)² +(1.62 -1.306)² +(1.17-1.306)² +(1.03 -1.306)² +(1.11 -1.306)²
=0.33344
Standard deviation =
=
= 0.1826
Therefore, for the given sample, mean = 1.306 and standard deviation = 0.1826.
Learn more about sample here
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The equation of an ellipse for the graph shown is
Since the given coordinates of the vertices and foci have the form (-5, 0) and (5, 0) and (-2, 0) and (2, 0) respectively, this ultimately implies that the major axis of this ellipse is the x-axis.
Thus, the standard form of the equation of this ellipse is given by:
Next, we would solve for b² by using this equation:
b² = a² - c²
b² = 5² - 2²
b² = 25 - 4
b² = 21.
Substituting the parameters into the standard equation of an ellipse, we have;
Read more on ellipse here: brainly.com/question/14468579
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