Which equation of the least squares regression line most closely matches the data set? x y
4 30
6 38
8 44
10 50
12 55

yˆ=0.32x−5.89

yˆ=1.13x−14.69

yˆ=3.1x+18.6

yˆ=0.59x+3.29

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

The anwser cause i do not understand just plez

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers