Question

The World Almanac lists 15 tall buildings in New Orleans, Louisiana. The number of floors in each of these buildings is shown in this stem and leaf plot.
How many buildings were in the 20-29 range?

2:3,5,8,8
3:1,2,3,3,6,9
4:2,5,7
5:1,3

Answer 1

how to interpret the stem and leaf plot: I'll use the third row as an example

4:2,5,7

the 4 behind the colon represents the tens place, while the digits in front represent the ones place. this entire row represents the entries 42, 45, and 47.

apply this logic to the first row of the stem and leaf plot.