Answer:
The median of the histogram is scores ranging from 70-80
Explanation:
Median of a histogram is always the "class interval" in which the MIDDLE NUMBER falls in.
If we add up all the bars (y-axis), we see HOW MANY NUMBERS in total there are. So we have:
numbers in total
What is the middle number out of 39 numbers?
It is:
th number where
for this problem
So, the middle number is :
th number
Which class interval does the 20th number fall into?
- First class interval has 1, so total is 1
- Second class interval has 2, so total is 1+2=3
- Third class interval has 1, so total is 3+1=4
- Fourth class interval has 2, so total is 4+2=6
- Fifth class interval has 6, so total is 6+6=12
- Sixth class interval has 9, so total is 12+9=21
So, definitely, 20th number falls into the sixth class interval which is "70-80".
Hence, the median of the histogram is scores ranging from 70-80.