A child psychologist suspects that there is a linear relationship between the amount of calories in the lunches of preschool-age children and the length of time they are able to focus on a given subject. She calculates a regression line where the slope estimates the length of a child focusing (in minutes) with the number of calories consumed at lunch. She calculates a 95% confidence interval for the regression slope to be (-0.53, -0.34). Assuming the requirements for this confidence interval are met, what is the correct interpretation

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

Graph the linear function using the slooe and y intercept

How do you write something in scientific notation?