Which of the following regressions represents the strongest positive linear relationship between x and y Regression 1
y=ax+by=ax+b
a=5.6a=5.6
b=18.7b=18.7
r=0.9642r=0.9642
Regression 2
y=ax+by=ax+b
a=17a=17
b=6.3b=6.3
r=0.8275r=0.8275
Regression 3
y=ax+by=ax+b
a=-6.9a=−6.9
b=-13.2b=−13.2
r=-0.0073r=−0.0073
Regression 4
y=ax+by=ax+b
a=4.7a=4.7
b=-19b=−19
r=1.0543r=1.0543

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?