find the mean of the data summarized in the given frequency distribution. Also, compare the computed means to the actual means obtained by using the original list of data values, which are as follows:...


find the mean of the data summarized in the given frequency distribution. Also, compare the computed means to the actual means


obtained by using the original list of data values, which are as follows:






















(Exercise a)



21.1 mg;



(Exercise b)



76.3 beats per minute;



(Exercise c)



46.7 mi/h;



(Exercise d)



1.911 lb.






Exercise a :






























Tar (mg) in


Non-filtered


Cigarettes



Frequency



10–13



1



14–17



0



18–21



15



22–25



7



26–29



2




Exercise b:






































Pulse Rates


of Females



Frequency



60–69



12



70–79



14



80–89



11



90–99



1



100–109



1



110–119



0



120–129



1




Exercise c:



Speeding Tickets
The given frequency distribution describes the speeds of drivers ticketed by the Town of Poughkeepsie police. These drivers were traveling through a 30mi/h speed zone on Creek Road, which passes the author’s college. How does the mean speed compare to the posted speed limit of 30mi/h?






























Speed



Frequency



42–45



25



46–49



14



50–53



7



54–57



3



58–61



1




Exercise d:


































Weights (lb)


of Discarded


Plastic



Frequency



0.00–0.99



14



1.00–1.99



20



2.00–2.99



21



3.00–3.99



4



4.00–4.99



2



5.00–5.99



1




May 22, 2022
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