Question

Use the table to answer the question.

This table displays the relationship between two variables, x and y, showing the corresponding y-values for given x-values.
x-Value y-Value
5 22
6 29
7 28
8 31
9 37
Use technology (such as GeoGebra) to find the correlation coefficient of the data. Round your r-value to two decimal places, if necessary.

(1 point)
Responses

0.94
0.94

0.90
0.90

6.40
6.40

0.93

Answer 1

0.93

(Using the formula r = Σ(x−x̄)(y−ȳ) / sqrt[Σ(x−x̄)^2 Σ(y−ȳ)^2] gives r = 32 / sqrt(1172) ≈ 0.9348 → 0.93.)