Maths-
General
Easy

Question

Consider the variables x and y and the corresponding data
a) Draw a scatter plot for the data.
b) Is there a positive, negative or no correlation between x and y?

hintHint:

A scatter plot has a positive correlation, if variables increase and decrease together. On the other hand, if a variable increase and the other decrease, then the correlation is negative.
We are asked to graph the scatter plot and find whether the correlation is positive, negative or none.

The correct answer is:


    Step 1 of 2:
    The coordinate points corresponding to the table are:
    (1,20),(2,16),(4,17),(5,16),(7,14),(8,13),(10,9),(12,10)
    The scatter plot based on the data is:

    Step 2 of 2:
    Analyzing the graph, it is that when the variable x increases, the variable y decreases. That means they are inversely proportional.
    Hence, the correlation among the variables x and y are negative.
     

    You could also find the correlation using the trend line. Draw the trend line, find its slope. It the slope is positive, the scatter plot has a positive correlation or else it is negative.

    Related Questions to study

    General
    General

    Choose the negative adjective starting with ' r '

    Choose the negative adjective starting with ' r '

    GeneralGeneral
    General
    Maths-

    Consider the variables x and y and the corresponding bivariate data .
    a) Draw a scatter plot for the data.
    b) Is there positive, negative or no correlation between x and y?
    c) Fit a line of best fit by eye to the data on the scatter plot.
    d) Use your line of best fit to estimate:
    i) y when x=3.5
    ii) y when x=0
    iii) x when y=1.5
    iv) x when y=5.5

    Consider the variables x and y and the corresponding bivariate data .
    a) Draw a scatter plot for the data.
    b) Is there positive, negative or no correlation between x and y?
    c) Fit a line of best fit by eye to the data on the scatter plot.
    d) Use your line of best fit to estimate:
    i) y when x=3.5
    ii) y when x=0
    iii) x when y=1.5
    iv) x when y=5.5

    Maths-General
    General
    Maths-

    Find the solution of the system of equations.
    y equals negative x squared minus 2 x plus 9
    Y = 3x+20

    Find the solution of the system of equations.
    y equals negative x squared minus 2 x plus 9
    Y = 3x+20

    Maths-General
    parallel
    General
    General

    Solve the reading game.
    Baby couldn't finish his HUMONGOUS sandwich

    Solve the reading game.
    Baby couldn't finish his HUMONGOUS sandwich

    GeneralGeneral
    General
    Maths-

    By completing scatter plots for each of the following data sets, describe the correlation between x and y as positive, negative or none.

    By completing scatter plots for each of the following data sets, describe the correlation between x and y as positive, negative or none.

    Maths-General
    General
    Maths-

    Find the solution of the system of equations.
    y equals 7 x squared plus 12
    y equals 14 x plus 5

    Find the solution of the system of equations.
    y equals 7 x squared plus 12
    y equals 14 x plus 5

    Maths-General
    parallel
    General
    Maths-

    By completing scatter plots for each of the following data sets, describe the correlation between x and y as positive, negative or none.

    By completing scatter plots for each of the following data sets, describe the correlation between x and y as positive, negative or none.

    Maths-General
    General
    Maths-

    Which number is next in the sequence? 35, 85, 135, 185, __

    Which number is next in the sequence? 35, 85, 135, 185, __

    Maths-General
    General
    Maths-

    Consider this simple bivariate data set
    a)Draw a scatter plot for the data
    b)Describe the correlation between x and y as positive or negative.
    c)Describe the correlation between x and y as strong or weak.
    d)Identify any outliers.

    Consider this simple bivariate data set
    a)Draw a scatter plot for the data
    b)Describe the correlation between x and y as positive or negative.
    c)Describe the correlation between x and y as strong or weak.
    d)Identify any outliers.

    Maths-General
    parallel
    General
    Maths-

    Calculate the time required for the principal to triple itself at the rate of 15% per annum simple interest.

    Calculate the time required for the principal to triple itself at the rate of 15% per annum simple interest.

    Maths-General
    General
    General

    Complete the sentences with the plural form of the word in brackets.

    Complete the sentences with the plural form of the word in brackets.

    GeneralGeneral
    General
    Maths-

    By completing scatter plots for each of the following data sets, describe the correlation between x and y as positive, negative or none.

    We could possible draw numerous trends for a line. But the main purpose is to describe the pattern of the values from the line. So, it is necessary to choose the best fit for the set of values.

    By completing scatter plots for each of the following data sets, describe the correlation between x and y as positive, negative or none.

    Maths-General

    We could possible draw numerous trends for a line. But the main purpose is to describe the pattern of the values from the line. So, it is necessary to choose the best fit for the set of values.

    parallel
    General
    Maths-

    Show the conjecture is false by finding a counterexample. Two supplementary angles form a linear pair

    Show the conjecture is false by finding a counterexample. Two supplementary angles form a linear pair

    Maths-General
    General
    General

    Identify Text Structure.
    Sharks and orcas hare a lot in common. Both of these sea animals are carnivores (meat-eaters) that hurt for their food. Like sharks, orcas have smooth bodies that can speed through the water, and lots of sharp teeth. But these is are major difference sharks are wish, while orcas are mammals! Like most fish, sharks by lay eggs: But orca babies are born live and drink milk from their mothers. Another difference is that orcas have Sony skeletons, but sharks have no bones at all-only  casttly.

    Identify Text Structure.
    Sharks and orcas hare a lot in common. Both of these sea animals are carnivores (meat-eaters) that hurt for their food. Like sharks, orcas have smooth bodies that can speed through the water, and lots of sharp teeth. But these is are major difference sharks are wish, while orcas are mammals! Like most fish, sharks by lay eggs: But orca babies are born live and drink milk from their mothers. Another difference is that orcas have Sony skeletons, but sharks have no bones at all-only  casttly.

    GeneralGeneral
    General
    Maths-

    Consider this simple bivariate data set. Draw a scatter plot for the data.
    a)Describe the correlation between x and y as positive or negative .
    b)Describe the correlation between x and y as strong or weak.
    c)Identify any outliers.

    Consider this simple bivariate data set. Draw a scatter plot for the data.
    a)Describe the correlation between x and y as positive or negative .
    b)Describe the correlation between x and y as strong or weak.
    c)Identify any outliers.

    Maths-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.