Multiple Choice
A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram
for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the
question. The blood pressure readings were given to the nearest whole number. 
-What common class width was used to construct the frequency distribution?
A) 11
B) 100
C) 10
D) 9
Correct Answer:
Verified
Correct Answer:
Verified
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