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. The blood pressure readings were given to the nearest whole number. What class width was used to construct the relative frequency distribution? 
A) 9
B) 11
C) 100
D) 10
Correct Answer:
Verified
Correct Answer:
Verified
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