Question

Five students measured the mass of the rock. Their readings were 95.1g, 97.0g, 96.2g, 96.5g, and 96.7g. Find the mean and median of these measures.

Answer 1

To get the mean of a set of data, the steps are to add all the data and divide by the total number of data.

`\bar{x}=(95.1+97.0+96.2+96.5+96.7)/(5)`

Then, solve.

`\bar{x}=(481.5)/(5)=96.3`

The mean is 96.3 grams.

On the other hand, the median of a set of data is the middlemost data once the data has been arranged from lowest to highest or vice versa.

Let's arrange the data first.

`95.1,96.2,96.5,96.7,97.0`

Out of the 5 data, the middlemost data would be the third one. Hence, the median is 96.5 grams.