Question

The average wind speeds for one year at 44 climatic data centers around the United States are as follows:
9.0, 6.9, 9.1, 9.2, 10.2, 12.5, 12.0, 11.2, 12.9, 10.3, 10.6, 10.9, 8.7, 10.3, 11.0, 7.7, 11.4, 7.9, 9.6, 8.0, 10.7, 9.3, 7.9, 6.2, 8.3, 8.9, 9.3, 11.6, 10.6, 9.0, 8.2, 9.4, 10.6, 9.5, 6.3, 9.1, 7.9, 9.7, 8.8, 6.9, 8.7, 9.0, 8.9, 9.3

1. make a stem plot of the average wind speeds data. The frequency in the stem for 9 to 9.9 is
A. 11
B. 13
C. 9
D. 12

Answer 1

http://www.jiskha.com/search/index.cgi?query=Math+Stem+and+leaf+plots
This website may help you with this question!!

Answer 2

@wagnermar