27. Tall Buildings How closely is the height (in meters) of a tall building and the number of floors related? The heights of 28 buildings in downtown Los Angeles and the number of floors for each building follows

a. Which of the two variables (height and floors) is the independent variable, and which is the dependent variable?

b. Find the correlation coefficient, r. What does this tell you about the strength and direction of the relationship between height and number of floors?

c. Plot the data using a scatterplot and describe the pattern that you see. Are there any outliers?

d. Find the least-squares line, and use it to predict the height of a building in Los Angeles that has 48 floors.

Transcribed Image Text:

Height Floors Height Floors Height Floors Height Floors 335 73 220 54 194 49 163 41 310 73 219 52 190 48 162 39 262 62 213 52 189 42 162 40 229 52 213 52 185 45 162 40 228 52 206 49 176 42 158 37 224 55 203 54 174 44 157 40 221 53 197 58 174 44 154 36 Source: World Almanac and Book of Facts, 2017, p. 718.