Is a histogram in frequencies? I have 21 measurementsof winter rainfall , all unique values. I have to draw a histogram with these measurments shown against the year they were measured. Should I split it up and have bars entitled - 0-10mm, 11-20mm etc or just do a bar for each years measurement - hope this makes sense!
2006-10-01 21:40:25 · 9 answers · asked by tranceaddict 1 in Science & Mathematics ➔ Mathematics
What I would do, is split the data into years and then into categories like 0-10, 11-20 etc. Then draw a bar for each of the different amounts of rain and split the bar for each year. for example if u have 2 days in one yr with 0-10 rainfall, then 3 days in the other, u can colour the first year from 0-2 red, then the second section 2-5 in blue etc, so each yr is represented by a colour!
2006-10-02 08:50:05 · answer #1 · answered by Beth 2 · 0⤊ 0⤋
You could draw a histogram for any variable. In this case say you have winter rainfall for say 5 years. You take a graph paper and plot the values. Let the x-axis of the graph represent the years. The Y-axis to represent rainfall figures. Choose a scale for both years and rainfall. Against each year plot the respective rainfall. You join all the points and the histogram is ready.
2006-10-02 05:54:54 · answer #2 · answered by openpsychy 6 · 0⤊ 0⤋
well you can group the data and then draw bars for each group.
Do a tally chart first and see how many values lie in 0-20, 21-40 or whatever your values are. then draw your bar chart with the frequencies up the side.
2006-10-02 04:53:39 · answer #3 · answered by Robert A 3 · 0⤊ 0⤋
It depends what you are trying to show. Are you looking to show a trend in rainfall over 21 years? If you are, the rainfall measurement grouping as you suggest, won't show what you need. I would do each year individually.
2006-10-02 04:56:26 · answer #4 · answered by C T 4 · 0⤊ 0⤋
a histo gram does not have any space in between it's bars it is joint so in order to make a histogram of those values first make the values constant. Like you will have to make it from 1-10,11-20
to 1-10.5,10.5-20 and so on
2006-10-02 05:29:16 · answer #5 · answered by Karan 1 · 0⤊ 0⤋
You didn't say how many years are involved.Splitting your data essentially produces a 3-dimensional histogram. With so few data, I would go with just years.
2006-10-02 04:52:07 · answer #6 · answered by Helmut 7 · 0⤊ 0⤋
Histo's use ranges to graph with . Cut up the complete range of values into a certain number of groups or "classes". THen graph on the Y axis the year
2006-10-02 04:51:43 · answer #7 · answered by wrh_roger 2 · 0⤊ 0⤋
it depends on you.
use excel to draw a histogram.
2006-10-02 04:44:12 · answer #8 · answered by iyiogrenci 6 · 0⤊ 0⤋
dont no
2006-10-02 05:00:37 · answer #9 · answered by dream theatre 7 · 0⤊ 1⤋