Find the median from this data?
The median is the "middle answer" in a list of answers. For instance, if we have the numbers
For the data above, we can take the frequencies as the number of values we'll be lining up - the middle value will sit in the interval that holds the middle value. Like this:
We can add the values and divide by 2:
The 56th/57th values sit:
And so the interval with the median sits in the
The median is the
If you have an odd number of values, then the median is slightly easier to find than if you have an even number of values.
The median is the middle value in a set of data.
- Add the frequencies to find the total number of lightbulbs,
- Arrange the given frequencies to look like this.
- Split up the
#29 rarr 56-42 = 14#more needed
This gives us what we need:
The median therefore lies in the interval which has the frequency of
Note that the median is the