A college counselor wants to determine if the number of hours spent studying for a test can be used to predict the grades on a t
2 answers:
Answer:
The predictor variable is the number of hours spent studying for a test.
The response variable is the grades on a test.
Step-by-step explanation:
Linear regression depicts the relationship between two variables by fitting a linear equation to experimental data values. One variable is known as an predictor (independent) variable, and the other is known as a response (dependent) variable.
The general form of a linear regression line is,
Here,
<em>X</em> = predictor variable
Y = response variable.
The variable <em>b</em> = slope of the line, and <em>a</em> = intercept (the value of y when x = 0).
The main purpose of forming a regression line is to estimate or predict the value of the response variable for different values of the predictor variables.
The predictor variable is changes to observe the changes in the response variable.
In this case the college counselor wants to determine if the number of hours spent studying for a test can be used to predict the grades on a test.
The predictor variable is the number of hours spent studying for a test.
The response variable is the grades on a test.
Because the counselor is using the number of hours studied to estimate the marks obtained.
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Answer:
550 mm^2
Step-by-step explanation:
A net can be drawn as shown in the first figure attached. Each square represents 5 mm by 5 mm, so is 25 mm^2. Altogether, there are 22 of them, so the total area is ...
(25 mm^2)·22 = 550 mm^2
The second attachment shows that net folded up to make the given figure.
_____
In the first attachment, the green shades represent the left- and right-side faces. (Darker green is left side.) The red and blue shades represent the front- and back-side faces. The white rectangles represent the top and bottom faces. The dark black lines are the cut lines. If you want to fold the figure up, the lighter lines are the fold lines.
The second attachment is just verification that all faces are accounted for and the net actually corresponds to the given figure.
Answer with explanation:
The equation which we have to solve by Newton-Raphson Method is,
f(x)=log (3 x) +5 x²
Initial Guess =0.5
Formula to find Iteration by Newton-Raphson method
So, root of the equation =0.205 (Approx)
Approximate relative error
Approximate relative error in terms of Percentage
=0.41 × 100
= 41 %