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.
-Given that 200 people were aged between 25 and 40, approximately how many had a systolic blood pressure reading less than 130?

Question

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. 
-Given that 200 people were aged between 25 and 40, approximately how many had a systolic blood pressure reading less than 130?

Quizplus · Accepted Answer

Based on the given age range (25-40), it's reasonable to infer that the majority of individuals would have a systolic blood pressure reading in the normal range, which is generally considered to be less than 130 mmHg for healthy adults. Without specific statistical data, the most logical assumption is that a significant majority, hence option D (148), would fall into this category.

A Nurse Measured the Blood Pressure of Each Person Who