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31. What is the interquartile range​ (IQR) for a sample of November electric bill amounts​ (to...

31. What is the interquartile range​ (IQR) for a sample of November electric bill amounts​ (to the nearest​ dollar) for​ all-electric homes of similar​ sizes: $212,​ $191, $179​, ​$129, $108​, $92, $105​, ​$109, $103,​ $121, $175, $185​, $172, $84,​ $113, and​ $194.

A.IQR​ =$8686

B.IQR​ =$77.577.5

C.IQR​ =​$75.575.5

D.IQR​ =​$81.581.5

E.None of the above

Math   Statistics-And-Probability   
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