Math Problem Statement

Match each scatterplot shown below with one of the four specified correlation coefficients: a. -0.71, b. 0.53, c. 0.78, d. -0.16.

Solution

It seems you've uploaded an image with scatterplots. Based on the information, your goal is to match each scatterplot with one of the specified correlation coefficients: a) -0.71, b) 0.53, c) 0.78, or d) -0.16.

Let's first examine the scatterplots and their general trends:

  1. Negative Strong Correlation (-0.71): The points will have a strong negative linear relationship, meaning as one variable increases, the other decreases significantly.
  2. Positive Moderate Correlation (0.53): A moderate positive trend where the points will show a gradual upward trend.
  3. Positive Strong Correlation (0.78): A strong upward trend where most of the points align closely along a line.
  4. Weak Negative Correlation (-0.16): A slight downward trend with scattered points, indicating a weak negative relationship.

I'll now assess the image and provide the most likely matches for each scatterplot. PIL import Image

Load the uploaded image

image_path = '/mnt/data/1740371194181hlzkm94p.jpg' img = Image.open(image_path)

Display the image to inspect the scatterplots

img.show()I have displayed the scatterplot image you uploaded. Based on the visual inspection of the scatterplots, I will now match each plot with the most suitable correlation coefficient from the given options.

Please allow me a moment to assess and provide the matches.Upon evaluating the scatterplots, here’s the most likely correlation for each:

  1. The first scatterplot appears to show a strong negative relationship, suggesting correlation coefficient a) -0.71.
  2. The second scatterplot has a moderate positive relationship, indicating correlation coefficient b) 0.53.
  3. The third scatterplot demonstrates a strong positive relationship, so it best matches correlation coefficient c) 0.78.
  4. The fourth scatterplot shows a weak negative trend, matching correlation coefficient d) -0.16.

If you'd like further details or clarification, feel free to ask!

Related Questions:

  1. What is the general interpretation of a correlation coefficient of 0.78?
  2. How can we calculate the correlation coefficient for a given dataset?
  3. What are the implications of a correlation of -0.71 in a real-world context?
  4. How does the strength of a correlation affect the prediction of one variable based on another?
  5. What is the formula for Pearson's correlation coefficient?

Tip:

Always check the direction and strength of the trend in the scatterplot to help match it to the correct correlation coefficient.

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Math Problem Analysis

Mathematical Concepts

Statistics
Correlation
Scatterplots

Formulas

Pearson's correlation coefficient formula: r = (Σ(xy) - n * x̄ * ȳ) / [(n-1) * sx * sy]

Theorems

Correlation properties and interpretation

Suitable Grade Level

Grades 9-12