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COMICS-1

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COMICS-1

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  • Slajd: 1
  • Dots and Decisions:
  • Understanding Scatter Plots and Pearson’s r
  • Slajd: 2
  • CHARACTERS:➜ Ms. Reyes – Their statistics teacher➜ Ken – Analytical friend, good with numbers➜ Mia – Curious student, asks lots of questions
  • Slajd: 3
  • Ken, what are these dots supposed to mean?
  • Slajd: 6
  • It looks kind of like a straight line!
  • So the form is linear.
  • Slajd: 8
  • Mia and Ken are working on a statistics assignment about relationships between study time and test scores. With guidance from Ms. Reyes, they explore scatter plots and learn how to compute and interpret Pearson’s correlation coefficient.
  • The dots go upward from left to right!
  • Slajd: 11
  • The dots are kinda close together…
  • Slajd: 13
  • 
  • To measure that relationship, we use Pearson’s r.
  • Slajd: 14
  • That looks complicated...
  • Slajd: 27
  • So scatter plots show the pattern…
  • Slajd: 29
  • Exactly, you're right...
  • Slajd: 30
  • What if the dots were scattered everywhere?
  • Slajd: 31
  • Let’s connect it back to the scatter plot.
  • Slajd: 32
  • You’ve got it!
  • Slajd: 36
  • Every dot tells a story.
  • - THE END -
  • Slajd: 37
  • CHARACTERS:➜ Ms. Reyes – Their statistics teacher➜ Ken – Analytical friend, good with numbers➜ Mia – Curious student, asks lots of questions
  • Mia and Ken are working on a statistics assignment about relationships between study time and test scores. With guidance from Ms. Reyes, they explore scatter plots and learn how to compute and interpret Pearson’s correlation coefficient.
  • Slajd: 0
  • That’s a scatter plot. Each dot represents two values—like study hours and test scores.
  • Exactly. Now, let’s analyze it. First—what’s the form
  • Good. Now, what about variation?
  • That means a positive trend—more study time, higher scores.
  • Next, identify the trend.
  • So, low variation—strong relationship.
  • Let’s break it step by step!
  • So, here's our data...
  • First, find the mean of x and y!
  • So, the Mean of x is 2.5, and the Mean of y is 68.75
  • And now, subtract the means and multiply deviation
  • After calculating everything…
  • We got the numerator and denominator!
  • So the final answer is r ≈ 0.98..
  • Whoa, that’s close to 1!
  • Yes, that means a strong positive correlation..
  • So studying more really helps!
  • And the Trend is Positive...
  • Lastly, the Variation is Low...
  • So, the Form is Linear
  • …and Pearson’s r measures how strong it is!
  • Then r would be near 0—no correlation.
  • Scatter plots and Pearson’s r aren’t so scary after all...
  • Yeah—just dots, patterns, and a little math.
  • And now you can interpret data like pros.
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