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A Statistics Worksheet - by HelpingWithMath.com

Comparing Mean Averages

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1. The two tables below show monthly rainfall data for two different locations

 

Tampa, FL: Monthly Rainfall in mm.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  59 71 77 51 76 175 208 211 162 66 43 55  

 

Tokyo, Japan: Monthly Rainfall in mm.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  50 72 106 129 144 176 136 149 216 194 96 54  

 

a. What is the mean monthly rainfall over the year for Tampa?   104.5 mm   

 

b. What is the mean monthly rainfall over the year for Tokyo?   126.8 mm   

 

c. Based on the answers to a. and b. above, which of the two cities is rainiest?   Tokyo   

 

For the following questions just consider the months of June, July, and August.

d. From June to August (inclusive), what is the mean monthly rainfall for Tampa?  198 mm   

 

e. From June to August (inclusive), what is the mean monthly rainfall for Tokyo?  153.7 cm   

 

f. Based on the answers to d. and e. above, which of the two cities is rainiest between June and August?   Tampa   

 

 

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