Answer:
A line fitted to data points that minimizes the sum of the squared residuals
Step-by-step explanation:
The principle of least square(LS) consists of determining the values of the unknown parameters that will minimize the sum of squares of errors (or residuals) where errors are defined as the differences between observed values and the corresponding values predicted or estimated by the fitted model equation.
Thus, the correct definition of least square regression line is "<em>A line fitted to data points that minimizes the sum of the squared residuals</em>"
So, it says that the Chavez family hikes the three shortest trails. Which ones in the chart are the three shortest trails? Second Beach (0.8), Third Beach (1.4), and Spruce Nature (1.25). Now add them all up to get the total distance they hike.
1.25+1.4+.8=?
Answer:
95 square inches
Step-by-step explanation:
Start by finding the surface area of the four triangles. 7x5=35 35÷2=17.5. 17.5x4=70. Then take the surface area of the square, 25, and add it to the surface area of the triangle. 70+25=95.
Hope this helps!
Answer:
12 sales
Step-by-step explanation:
Let x represent the number of sales each man had.
For Salesman A, he earns $65 per sale; this is 65x.
For Salesman B, he earns $40 per sale; this is 40x. We also add to this his weekly salary of $300; this gives us 40x+300.
Since their pay was equal, set the two expressions equal:
65x = 40x+300
Subtract 40x from each side:
65x-40x = 40x+300-40x
25x = 300
Divide both sides by 25:
25x/25 = 300/25
x = 12
3n-16<8
3n<24
n<8
............
