The scatter plot below shows the relationship between the number of hours a student plays golf and the student’s class attendance. Which of the following types of correlation is shown on the scatter plot?
A. Positive
B. Positive and negative
C. No correlation
D. Negative
Scatter plots can depict three correlations: positive, negative and no correlation. A positive correlation scatter plot reveals that as one variable increases, the other variable also increases as shown below
Therefore, the Correct Answer is D.
More Questions on TEAS 7 Math
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Q #1: A doctor earns $980.00 per week before any tax deductions. The following taxes are deducted each week: $85.00 federal income tax, $40.00 state income tax, and $81.00 Social Security tax. How much will the doctor make in 4 weeks after taxes are deducted?
A. $3,096.00
B. $3,00.00
C. $3,00.00
D. $3,200.00
Answer Explanation
We are required to find the doctor’s earning in 4 weeks after taking off taxes.
The first step is to find the total weekly deductions as follows:
Total weekly tax=federal income tax + state income tax + Social Security tax
Total weekly tax=$(85.00+40.00+81.00)
Total tax=$206.00
The next step is to find the weekly income after deducting total taxes
Weekly net income=gross income-total tax
Weekly net income=$(980.00-206.00)=$774.00
In one week, the net income of the doctor is $774.00 and after 4 weeks, the net income will be 4 times his weekly earning
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Q #2: If x represents the width of a rectangle and length is four less than three times the width, which of the following expressions represents the length of the rectangle in terms of x?
A. 4 - 3x
B. 3 - 4x
C. 4x - 3
D. 3x - 4
Answer Explanation
To form an equation from the word problem, first break the given statement into smaller statements.
First, we are given the width of the rectangle as x. We are told, the length is three times width. Mathematically, this means
Length=3*width=3*x=3x
Again, the length is 4 less than 3 times width of the rectangle. Thus, the length of rectangle in terms of width becomes:
Length =3x-4
This is the required equation.
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Q #3: Which of the following is the correct decimal placement for the product of 1.9 * 0.75?
A. 1.425
B. 14.25
C. 0.01425
D. 0.001425
Answer Explanation
In the given problem, we use the calculator to evaluate the product 1.9 * 0.75 = 1.425
