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Continuous Data Measurement

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Continuous Data Measurement

A hospital ward is checking how measurements change over time. Use the data and tools below to identify, record and interpret continuous data. Show working where needed.

Continuous or discrete?

Continuous data can take any value within a range, including values between whole numbers. Discrete data is counted in separate whole-number amounts.

1.The ward records patients’ heights, temperatures and number of visitors. Which two measurements are continuous data? Explain why the remaining item is different.

2.Aisha’s temperature is recorded as 37.2°C. Which value could also be a possible temperature reading?

37.25°C
37 visitors
37 beds
37 people

3.Freya measures a patient’s height as 142.6 cm. Write this measurement in metres.

Temperature checks

Arjun’s temperature is checked at regular intervals while he rests. Use the table to answer the questions.

Time

8:00 am

9:00 am

10:00 am

11:00 am

Temperature (°C)

38.4

38.1

37.8

37.5

4.By how many degrees Celsius did Arjun’s temperature change from 8:00 am to 11:00 am?

5.The measurements were taken at hourly intervals. Between 9:00 am and 10:00 am, the temperature fell by 0.3°C. Can you know the exact temperature at 9:30 am from these readings alone? Explain.

6.The nurse wants to track the temperature trend clearly. What type of graph would suit measurements recorded over time, and why?

Choosing tools and precision

Different tools measure different quantities, and their smallest scale divisions affect how precisely you can record a measurement.

7.Match each measurement to the most suitable tool.

Body temperature
Height
Mass

Stadiometer
Scales
Digital thermometer

8.A ruler has marks every 1 mm. Another ruler has marks only every 1 cm. Which ruler lets you measure a small change in length more precisely? Give a reason.

9.A nurse records a bandage length as 18 cm. What additional detail would make the measurement more precise, if the measuring tool allows it?

10.A ward records the number of blankets used each day and the room temperature each day. Which data set is continuous? Why?