Question

Let x be a random variable that represents the batting average of a professional baseball player. Let y be a random variable that represents the percentage of strikeouts of a professional baseball player. A random sample of n = 6 professional baseball players gave the following information.

x 0.350 0.270 0.340 0.248 0.367 0.269
y 2.8 7.0 4.0 8.6 3.1 11.1
Verify that Σx = 1.844, Σy = 36.6, Σx2 = 0.579554, Σy2 = 279.62, Σxy = 10.4864, and r ≈ -0.896.
Σx 1
Σy 2
Σx2 3
Σy2 4
Σxy 5
r 6

Answer 1

the answer is Let x be a random variable that represents the batting average of a professional baseball player. Let y be a random variable that represents the percentage of strikeouts of a professional baseball player. A random sample of n = 6 professional baseball players gave the following information.

x 0.350 0.270 0.340 0.248 0.367 0.269

y 2.8 7.0 4.0 8.6 3.1 11.1

Verify that Σx = 1.844, Σy = 36.6, Σx2 = 0.579554, Σy2 = 279.62, Σxy = 10.4864, and r ≈ -0.896.

Σx 1

Σy 2

Σx2 3

Σy2 4

Σxy 5

r 6