Question

Bruce's three measurements are 19cm, 20cm, 23cm. calculate the average value of his measurements and express the answer with the correct number of significant figures

Answer 1

Bruce's three measurements are 19cm, 20cm, 23cm. calculate the average value of his measurements

Answer: We are given:

Bruce has three measurements measuring 19cm, 20cm, 23cm.

We need to find the average value of Bruce's measurements.

We know the formula of average is:

`\bar{x}=(\sum x)/(n)`

Where:

`\sum x` is the sum of observations

`n` is the number of observations

`\therefore` average value of Bruce's measurements is:

`\bar{x}=(19+20+23)/(3)`

`=(62)/(3) =20.67 \approx 21`

Hence the average value of Bruce's measurements is 21cm