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Help me with this question please 9th grade algebra 1, I'm giving 25 points

Help Me With This Question Please 9th Grade Algebra 1 Im Giving 25 Points class=

Sagot :

Answer:

(a) r = -0.947928522

(b) strong, negative

Step-by-step explanation:

The Product Moment Correlation Coefficient (r) measures the strength of the linear correlation between two variables.

The PMCC is always between +1 and -1.

The closer the value of r is to +1 or -1, the stronger the correlation between the two variables.

  • Values close to +1 mean a strong, positive correlation.
  • Values close to -1 mean a strong, negative correlation.
  • Values close to zero mean a weak correlation.

Inputting the data from the table into a calculator and using the statistical function:

r = -0.947928522

As the value of r is close to -1, the best description for the correlation would be strong, negative