Pitanje 1
1.
Write the linear regression equation for these data, rounding all values to the nearest hundredth.
From the data above:
State the correlation coefficient of the linear regression equation, to the nearest hundredth. Explain the meaning of this value in the context of these data.
State the linear regression function, f(t), that estimates the day's coffee sales with a high temperature of t. Round all values to the nearest integer.
From the data above:
State the correlation coefficient, r, of the data to the nearest hundredth. Does r indicate a strong linear relationship between the variables? Explain your reasoning.
State the linear regression equation represented by the data table when
x = 0 is used to represent the year 2007 and y is used to represent the
attendance. Round all values to the nearest hundredth.
From the data above:
State the correlation coefficient to the nearest hundredth and determine
whether the data suggests a strong or weak association.
Write the linear regression equation for this set of data, rounding all values to the nearest thousandth.
From the data above:
Using this equation, predict the slope of a beach, to nearest tenth of a degree, on a beach with grains of sand having a median diameter of 0.65 mm.
State, to the nearest tenth, the linear regression equation that approximates the length, y , of the rope after tying x knots.
From the data above:
Explain what the y-intercept means in the context of the problem.
From the data above:
Explain what the slope means in the context of the problem.