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 years. The blood pressure readings were given to the nearest whole number. Approximately what percentage of the people aged​ 25-40 had a systolic blood pressure reading between 110 and 119 mm Hg​ inclusive?
Systolic Blood Pressure for People Aged​ 25-40 Years

To determine the percentage of people aged 25-40 who had a systolic blood pressure reading between 110 and 119 mm Hg, we'll need to use the information provided in the relative-frequency histogram.

Given that you have referenced a relative-frequency histogram:
1. Identify the bar on the histogram corresponding to the blood pressure range of 110-119 mm Hg.
2. Read the relative frequency (or height of the bar) associated with this range.

Since the total of all relative frequencies in a histogram is 1 (or 100% if expressed as a percentage), the percentage for the specific range (110-119 mm Hg) can be found directly from the histogram's data. 

Without the exact histogram data, the general approach would be:
- Locate the frequency value for the range 110-119.
- Multiply the relative frequency by 100 to convert it into a percentage.

If, for example, the histogram indicates a relative frequency of 0.25 for the range 110-119 mm Hg, the percentage of people in this range would be:
\[
0.25 \times 100 = 25\%
\]

### Would you like to provide the histogram or the relative frequency for more detailed calculations?

### Further Questions
1. What are the relative frequencies of other blood pressure ranges on the histogram?
2. Is the histogram skewed towards lower or higher blood pressure values?
3. How does the blood pressure distribution differ for people of different age groups?
4. What is the median systolic blood pressure reading from the data?
5. Are there any outliers in the blood pressure readings?

### Tip
Always check if the relative frequencies in a histogram sum up to 1 (or 100% when converted to a percentage) to ensure data accuracy.

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 years. The blood pressure readings were given to the nearest whole number. Approximately what percentage of the people aged​ 25-40 had a systolic blood pressure reading between 110 and 119 mm Hg​ inclusive?

Learn how to calculate the percentage of people aged 25-40 with systolic blood pressure readings between 110 and 119 mm Hg using a relative-frequency histogram. This problem covers key statistical concepts, including relative frequency and histograms. Suitable for students in Grades 10-12.

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