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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

Answer Explanation:

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

  • Q #1: The graph below represents the amount of rainfall in a particular state by month. Which of the following is the total rainfall for the first 5 months of the year?

    A. 11 inches

    B. 7.5 inches

    C. 4.5 inches

    D. 3.5 inches

    Answer Explanation

    The first five months of the year are January, February, March, April, and May. We use to graph to find the amount of rainfall in each month as follows:

    In the month of January, rainfall was between o and 1, which is halfway. Therefore, rainfall in January is 0.5 inches

    On February, rainfall was 1 inch and on March the rainfall was 2 inches.

    On April, the rainfall amount was 4 inches while on month of May, the rainfall was about 3.5 inches. Therefore, total rainfall in the first 5 months was:

    Total rainfall=0.5 inches+1 inches+ 2 inches+4 inches + 3.5 inches =11 inches

  • Q #2: Which of the following statements is true about the following graph?

    A. The Chargers points per game decreased between seasons five times between 1996 and 2015

    B. The Chargers scored their lowest number of points per game in 1999-2000 season

    C. The Chargers scored their greatest number of points per game in the 2002-03 season

    D. None of the above

    Answer Explanation

    We analyze the given statement with the graph given as follows:

    For option a: the points per game decreased five times between 1996 and 2015. So, the statement is true.

    For option b: the lowest points scored per game was in 1998-99 season. So, the statement is false.

    For option c: 2008-09 was the season the chargers scored the greatest number of points per game and not 2002-03 as claimed in the statement. So, this statement is not true.

  • Q #3: One gallon of cleaning solution requires 10 oz of ammonia. If the maintenance department needs 51 gallons of solution to clean all of the floors, how much ammonia is needed?

    A. 510 gallons

    B. 51 gallons

    C. 510 oz

    D. 51 oz

    Answer Explanation

    We use given information to find how much ammonia is need to make the specified solution.

    We are told, one gallon of cleaning solution requires 10 oz of ammonia. Expressing this mathematically yields two options:

    \(\frac{10\ oz\ of\ ammonia}{1\ gallon\ of\ solution}\) or \(\frac{1\ gallon\ of\ solution}{10\ oz\ of\ ammonia}\)

    Now we find how much ammonia is needed using option two.

    \(51\ gallon\ of\ solution\ *\frac{10\ oz\ of\ ammonia}{1\ gallon\ of\ solution}\ =\ 510\ oz\ of\ ammonia\)

    From the above equation, gallon of solution will cancel, and oz of ammonia is left.

    Therefore, the solution will require 510 oz of ammonia.