/

The scatter plot below shows the relationship between the student’s exam scores and the students’ heights. Which of the following types of correlation is shown on the scatter plot?

A. Positive

B. Positive and negative

C. Negative

D. No correlation

Answer Explanation:

correlations fall into positive, negative, and no correlation.  A positive correlation shows that an increase in one variable increase results in an increase on the other variable increases as shown.

A negative correlation scatter plot shows that an increase in one variable results in a decrease on the other one.

The no-correlation scatter plot demonstrates that there is no response between variables. A change in one variable has no effect on the other variable.

 

Looking at the provided scatter plot, the heights of the students does not have any relationship on the students’ scores. Thus, the type of correlation is no correlation.

Therefore, the Correct Answer is D.

More Questions on TEAS 7 Math

  • Q #1: A student performs the following estimations. 35+192  230 258+350  610 947+1032  1980 Based on these estimations, which of the following is the student’s estimate of 694+7618?

    A. 8320

    B. 8500

    C. 8300

    D. 8310

    Answer Explanation

    Here we need to find the actual values of the additions and see the trend the student will use to estimate the given problem. The exact sum is as follows

    35+192=227

    258+350=608

    947+1032=1979

    From the above calculations, it is evident that the student rounds up or down the ones place values. So, in the problem we need to approximate 694+7618.

    694+7618=8312

    We can approximate 8312 based on the provided choices is 8310.

  • Q #2: Which of the following is the equivalence in pounds for 45 kg? (2.2 lb =1 kg)

    A. 120 lb

    B. 89 lb

    C. 99 lb

    D. 90 lb

    Answer Explanation

    We asked to convert kg to pounds. There are two ways of converting between kg and pounds

                            

    And

                             

    Since we are to find pounds, we use the second option for kg to cancel

                   

    The pound equivalent of 45 kg is 99 lb.

  • Q #3: 3(2x+5)=11x+5 Solve the equation above for x. Which of the following is correct?

    A. 1

    B. 2

    C. -1

    D. -2

    Answer Explanation

    We follow the order operations to solve for the unknown value of x.

    3(2x+5)=11x+5

    Open the bracket on the LHS by multiplying each term by 3

    (3*2x)+(3*5)=11x+5

    6x+15=11x+5

    Subtract 15 from both sides

    6x+15-15=11x+5-15

    6x=11x-10

    Subtract 11x on both sides

    6x-11x=11x-11x-10

    -5x=-10

    Divide both sides by -5

    -5x/-5=-10/-5

    x= 2

    Thus, the value of unknown value of x is 2.