Results are out! Find what you need...fast. Get quick advice or join the chat
x

Unlock these great extras with your FREE membership

  • One-on-one advice about results day and Clearing
  • Free access to our personal statement wizard
  • Customise TSR to suit how you want to use it

S1-histograms

Announcements Posted on
Find your uni forum to get talking to other applicants, existing students and your future course-mates 27-07-2015
Win top prizes in our mega results day giveaway... 24-07-2015
  1. Offline

    ReputationRep:
    hi can someone please help me on question 4)c Ex 4E? this is the edexcel S1 book

    i tried to do this but is wrong
    (35-30)x5+(40-35)x10= 75
  2. Offline

    ReputationRep:
    (Original post by otrivine)
    hi can someone please help me on question 4)c Ex 4E? this is the edexcel S1 book

    i tried to do this but is wrong
    (35-30)x5+(40-35)x10= 75
    You've worked out the frequency density, as shown from part b, you work out the no. of people per frequency density which is 2. Therefore you just multiply your answer by 2.
  3. Offline

    ReputationRep:
    Look at the people who threw less than 10

    (10-0)x2 = 20 but you are told it is 40
  4. Offline

    ReputationRep:
    (Original post by TenOfThem)
    Look at the people who threw less than 10

    (10-0)x2 = 20 but you are told it is 40
    so is it 75+40?
  5. Offline

    ReputationRep:
    (Original post by otrivine)
    so is it 75+40?
    ???
  6. Offline

    ReputationRep:
    (Original post by TenOfThem)
    ???
    do you do 75 x 2 = 150 ??
    by why times 2 ?
  7. Offline

    ReputationRep:
    Yes

    because you are told the density when you are given the information for the first 10
  8. Offline

    ReputationRep:
    (Original post by otrivine)
    so is it 75+40?
    The area of the bar from 0 to 10 metre is 20unit^2.

    It has 40 people, so 1unit^2 = 2 people.

    The area you have found for the bar between 30 and 40 is 75unit^2.

    We know 1unit^2 = 2 people
    So 75unit^2 = 75 * 2 =150people
  9. Offline

    ReputationRep:
    (Original post by raheem94)
    The area of the bar from 0 to 10 metre is 20unit^2.

    It has 40 people, so 1unit^2 = 2 people.

    The area you have found for the bar between 30 and 40 is 75unit^2.

    We know 1unit^2 = 2 people
    So 75unit^2 = 75 * 2 =150people
    i get it so what did u do to get 2 people what did u divide?
  10. Offline

    ReputationRep:
    (Original post by otrivine)
    i get it so what did u do to get 2 people what did u divide?
    20 squares = 40 people

    1 square = ???
  11. Offline

    ReputationRep:
    (Original post by otrivine)
    i get it so what did u do to get 2 people what did u divide?
    Common sense.

    If 20unit^2 = 40 people
    1unit^2 = 40/20 people
    1unit^2 = 2people

    Do you get it?
  12. Offline

    ReputationRep:
    (Original post by raheem94)
    Common sense.

    If 20unit^2 = 40 people
    1unit^2 = 40/20 people
    1unit^2 = 2people

    Do you get it?
    yep thanks

Reply

Submit reply

Register

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. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: May 7, 2012
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.

Poll
Did you lie on your personal statement?
New on TSR

Results are coming...

No sweat. Here's all you need to make sure you're ready

Study resources
x

Think you'll be in clearing or adjustment?

Hear direct from unis that want to talk to you

Get email alerts for university course places that match your subjects and grades. Just let us know what you're studying.

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