30 POINTS PROBABILITY AND STATISTICS PLEASE HELP PHOTO INCLUDED, THANK YOU!

O The median-median regression line is a better prediction.

Step-by-step explanation:

The given median-median line for a dataset is

y 1.133x+ 0.489

The least-squares regression line for the same dataset is

y = 1.068x0.731

The given point is (50,60).

Substitute x=50 in each given equation.

y = 1.133(50) + 0.489

57.139

y = 1.068(50) + 0.731 = 54.131

Since the value of median-median line at x=50 is near to 60 than the value of least-squares regression at x=50.

The median-median line regression line is a better prediction. Therefore the correct option is A.

how am i supposed to answer

step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2