S1-histograms
Maths and statistics discussion, revision, exam and homework help.
-
- Reputation:
- Exalted Member
- Posts: 339
Re: S1-histogramsYou'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.(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 -
- Reputation:
- Thread Starter
- TSR Legend
- Posts: 14,759
Re: S1-histogramsso is it 75+40?(Original post by TenOfThem)
Look at the people who threw less than 10
(10-0)x2 = 20 but you are told it is 40 -
- Reputation:
- Thread Starter
- TSR Legend
- Posts: 14,759
Re: S1-histogramsdo you do 75 x 2 = 150 ??(Original post by TenOfThem)
???
by why times 2 ? -
- Reputation:
- TSR Demigod
- Posts: 5,512
Re: S1-histogramsThe area of the bar from 0 to 10 metre is 20unit^2.(Original post by otrivine)
so is it 75+40?
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 -
- Reputation:
- Thread Starter
- TSR Legend
- Posts: 14,759
Re: S1-histogramsi get it so what did u do to get 2 people what did u divide?(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 -
- Reputation:
- TSR Royalty
Re: S1-histograms20 squares = 40 people(Original post by otrivine)
i get it so what did u do to get 2 people what did u divide?
1 square = ??? -
- Reputation:
- TSR Demigod
- Posts: 5,512
Re: S1-histogramsCommon sense.(Original post by otrivine)
i get it so what did u do to get 2 people what did u divide?
If 20unit^2 = 40 people
1unit^2 = 40/20 people
1unit^2 = 2people
Do you get it? -
- Reputation:
- Thread Starter
- TSR Legend
- Posts: 14,759
Re: S1-histogramsyep thanks(Original post by raheem94)
Common sense.
If 20unit^2 = 40 people
1unit^2 = 40/20 people
1unit^2 = 2people
Do you get it?
