Maths, Addmaths and Statistics: Post your doubts here!

[Kamihus]

What does a Histogram have on its y-axis? Frequency density or frequency?

I mean, if they give a frequency table and tell us to make a histogram. What do we do then?

Divide the frequency by the range, like if its 10-15 and frequency for this is 10 then divide and you get 2. This is the frequency density and that is what is on the y-axis.

 

[Dark Destination]

Divide the frequency by the range, like if its 10-15 and frequency for this is 10 then divide and you get 2. This is the frequency density and that is what is on the y-axis.

Okay, so it's always frequency density on the y-axis in histograms.

 

[Kamihus]

Okay, so it's always frequency density on the y-axis in histograms.

Yup.

 

[era30amy]

Know all the concepts. And then learn to apply them to questions.

I ain't know shit about Transformation, Vectors, Mensuration, Statistics. How long will it take to cover all these topics? :'/

 

[Dark Destination]

I ain't know shit about Transformation, Vectors, Mensuration, Statistics. How long will it take to cover all these topics? :'/

4 hours.. can be done easily.

 

[era30amy]

4 hours.. can be done easily.

What are the things I need to know in Statistics?

 

[Dark Destination]

What are the things I need to know in Statistics?

- Cumulative Frequency graphs.
- Histograms.
- Pie charts.
- Probability.

 

[era30amy]

- Cumulative Frequency graphs.
- Histograms.
- Pie charts.
- Probability.

Probability? You good?

 

[era30amy]

- Cumulative Frequency graphs.
- Histograms.
- Pie charts.
- Probability.

Cumulative frequency curves woh upper quartile aur lower quartile walay? :/

 

[Ram97]

Probability? You good?

Most of it is related with the tree diagram

 

[Dark Destination]

Probability? You good?

They combine questions of probability with statistics..
Like, give a frequency table with class intervals, and ask a random probability question.

 

[Dark Destination]

Cumulative frequency curves woh upper quartile aur lower quartile walay? :/

Yup.

 

[era30amy]

They combine questions of probability with statistics..
Like, give a frequency table with class intervals, and ask a random probability question.

How do we calculate median from a grouped data? D:

 

[Dark Destination]

How do we calculate median from a grouped data? D:

Find the middle term..

 

[asadalam]

How do we calculate median from a grouped data? D:

Divide total frequency by 2.If it is in points like 13.5 go to the class width on which 14th frequency falls, if its 14 go to width on which 14 and 15 fall.

 

[era30amy]

Find the middle term..

No, from a grouped data.

 

[era30amy]

Divide total frequency by 2.If it is in points like 13.5 go to the class width on which 14th frequency falls, if its 14 go to width on which 14 and 15 fall.

Could you explain with an example? Too dumb to get it. :/

 

[asadalam]

Could you explain with an example? Too dumb to get it. :/

Give me a q from the past paper in which there is grouped data,i'll solve it...too lazy to look myself...

 

[era30amy]

Give me a q from the past paper in which there is grouped data,i'll solve it...too lazy to look myself...

kayz, waitz

 

[era30amy]

http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_s05_qp_2.pdf
Q-5 a) ii)