Hey! Sign in to get help with your study questionsNew here? Join for free to post

Need help from a math student

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
    • Thread Starter

    I'm not a math student and i need help with this histogram question..
    Is my graph correct?
    Isn't this more like a bar chart? I thought histograms must have a range of values on the x axis, not discrete numbers. If so, how do i find the range, how do i solve this?
    • Thread Starter

    Name:  image.jpg
Views: 66
Size:  520.6 KBThis is my graph. Forgot to attach it.

    (Original post by Zainabr17)
    Name:  image.jpg
Views: 66
Size:  520.6 KBThis is my graph. Forgot to attach it.
    bars on a bar chart have spaces between them whereas bars on a histogram do not.
    on a histogram: the area of a bar shows the frequency of the bar, whereas with a bar chart in this case height would show frequency.

    since it's a histogram the Y axis should say frequency density and the x axis should be labelled number of beans in a pod.

    Since the area of the bar represents the frequency, to find the height of the bar, divide frequency by the class width. However since the class width of all your x values is just 1 (your data is ungrouped so there is no class interval), your bars are actually correct. To my knowledge all you need to do is change the labels on the axes.

    to anyone else reading this: please correct me if I am wrong.
    • Thread Starter

    Thank you!
    I changed the label (y axis) to frequency density.
    So i have to find the frequency density (i.e. =frequency/class width) whenever i draw a histogram.
    Easy now
    Math is making my subjects harder for me...especially logarithms and statistics.
Write a reply…


Submit reply


Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. Oops, you need to agree to our Ts&Cs to register
  2. Slide to join now Processing…

Updated: April 9, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Do you like sleeping in a cold room?
Useful resources

Make your revision easier


Maths Forum posting guidelines

Not sure where to post? Read here first


How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.