Study

Correlation Coefficient

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  • Describe the following r-value using two words. r=0.002
    WEAK,POSITIVE
  • Describe the following r-value using two words. r=0.65
    MODERATE, POSITIVE
  • Which r-value is stronger? r=-0.87 or r=0.78?
    r=-0.87
  • Describe the following r-value using two words. r=0.92
    STRONG, POSITIVE
  • Calculate the correlation coefficient.
    -0.258
  • Choose the most accurate r-value. r=-0.09 r=-0.9 r=-0.5 r=0.3
    r=-0.9
  • Describe the following r-value using two words. r=-0.32
    WEAK, NEGATIVE
  • Choose the most accurate r-value. r=0.99 r=-0.75 r=0.45 r=0.01
    r=0.01
  • Does the following scatterplot model positive, negative, or no correlation?
    NEGATIVE
  • Which is the best estimate for the correlation coefficient?
    0.7
    -0.4
    0.4
    -0.6
  • Which r-value is stronger? r=-0.98 or r=0.978?
    r=-0.98
  • Calculate the correlation coefficient.
    0.476
  • Describe the following r-value using two words. r=-0.899
    STRONG,NEGATIVE
  • Which r-value is stronger? r=-0.675 or r=0.676?
    r=0.676
  • Choose the most accurate r-value. r=0.9 r=-0.8 r=0.5 r=0.1
    r=0.5
  • Calculate the correlation coefficient.
    0.876
  • Does the following scatterplot model positive, negative, or no correlation?
    NO CORRELATION
  • Calculate the correlation coefficient.
    -0.816
  • Does the following scatterplot model positive, negative, or no correlation?
    POSITIVE
  • Calculate the correlation coefficient.
    -0.398
  • Choose the most accurate r-value. r=0.8 r=-0.75 r=-0.8 r=0.6
    r=0.8