b. See the explanation for the graph. The y-intercept is a small positive umber so it makes sense since the y-intercept corresponds to the height of a newborn baby which would be a small positive number compared to the heights of adults.

Question

2021-05-23

b. See the explanation for the graph. The y-intercept is a small positive umber so it makes sense since the y-intercept corresponds to the height of a newborn baby which would be a small positive number compared to the heights of adults.

asked 2021-05-25

asked 2021-05-29

Using the health records of ever student at a high school, the school nurse created a scatterplot relating y = height (in centimeters) to x = age (in years). After verifying that the conditions for the regression model were met, the nurse calculated the equation of the population regression line to be μ0=105+4.2x with σ=7 cm. If the nurse used a random sample of 50 students from the school to calculate the regression line instead of using all the students, would the slope of the sample regression line be exactly 4.2? Explain your answer.

asked 2021-05-12

Make a scatterplot for each set of data. Tell whether the data show a linear association or a nonlinear association.
(1,2),(7,9.5),(4,7),(2,4.2),(6,8.25),(3,5.8),(5,8),(8,10),(0,0)

asked 2021-02-19

\((1,\ 2),\ (7,\ 9.5),\ (4,\ 7),\ (2,\ 4.2),\ (6,\ 8.25),\ (3,\ 5.8),\ (5,\ 8),\ (8,\ 10),\ (0,\ 0)\)