# Homework Help: Find the median

1. Aug 27, 2014

### lionely

1. The problem statement, all variables and given/known data

Attempt :

I think I am interpreting the graph wrongly, the median for the Number of hours studied

should be 3 since only There are people who studied from 1~5 hrs,

and for Number of hours slept it should be (7+6)/2 = 6.5 since people only slept for 4~9 hrs .

I am not sure because the answer is wrong. Please guide me

2. Aug 27, 2014

### ehild

How is median defined?

ehild

3. Aug 27, 2014

### lionely

Median would be the middle number of a set of numbers that are in order of ascending magnitude.

4. Aug 27, 2014

### ehild

So, in case of hours to study, you have 1 hour 4 times, 2 hours 4 times, 3 hours 3 times,4 hours twice, 5 hours twice. So the set of hours ordered in ascending magnitude is 1,1,1,1,2,2,2,2,3,3,3,4,4,5,5. What is the number at the middle?

ehild

5. Aug 27, 2014

### lionely

Well the middle numbers is 2, and for the hours slept it would be 7 oh so the difference is 5.

Thank you . I was being extremely stupid about reading the graph.

6. Aug 27, 2014

### ehild

You are welcome

ehild