You are training a linear regression model on a representative sample in order to predict house prices. performance tests suggest that the model has an issue of high estimator bias in combination with low estimator variance. what action below is likely to solve the high bias issue?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?