To find the median, you find the number that is in the middle.
Just add the frequency of the numbers together (not the actual number) and divide by 2 to find where the middle number should be. Alternatively, you could list the numbers and find the middle one
thx guys but i was asking if you had to estimate the median from a histogram if you weren't given the individual values...i know how to do it now though...but thanks for you help anyway
1) Work out an estimate for the median time : ................ minutes
CAN SOMEONE PLEASE HELP ME, AND SHOW ME HOW TO WORK IT OUT Step by Step (The f column adds up to 203. If you divide that by 2 you get 101.5 ~ then you work out the class it is in ???)
THE ANSWER IS : 41 -43 minutes I JUST NEED TO KNOW HOW TO WORK IT OUT ... my gcse is tomorrow :O
Frequency Density = Frequency / Class width so Frequency = Frequency density X class width
Once you've found frequency...
Median = n/2 (where n is total frequency) Once you've found median add up to frequencies until you've got up to your median and look at which class interval it lies in.
the area of the histogram is the frequency, so you just figure out the frequency of each bar of the histogram, divide by 2 then find the histogram bar that has that frequency.
Hello I was just wondering what happens if i have two medians (middle values) in my histogram ???please help! I have an assignment about it and am completely lostHelp needed ASAP if able Thanks a billion
Hello I was just wondering what happens if i have two medians (middle values) in my histogram ???please help! I have an assignment about it and am completely lostHelp needed ASAP if able Thanks a billion
Hi, this is a very old thread so I am going to close it. Instead please start a new thread with your question indicating what level you are at e.g. GCSE/A Level. It would also be very useful if you post an example question with your attempt.