Frequency Distribution Homework: Part II Help and Attached Working for Part I

AI Thread Summary
The discussion centers on a homework question regarding frequency distribution, specifically part II, where the original poster seeks guidance on how to approach the problem. Respondents emphasize that the question may contain an error, as it asks for a calculation without providing sufficient data to do so. They suggest that if the question had requested an estimate instead, a graphical approach could be used. The consensus is that without additional information, particularly about the distribution of data points within specified ranges, a precise calculation is impossible. Overall, the participants urge the original poster to clarify the question or provide more context for assistance.
kelvin macks
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Homework Statement



my question is on part ii , can someone suggest how to do part ii please? thanks.. by the way , i have attached the working for part i

Homework Equations





The Attempt at a Solution

 

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kelvin macks said:

Homework Statement



my question is on part ii , can someone suggest how to do part ii please? thanks.. by the way , i have attached the working for part i

Homework Equations





The Attempt at a Solution



See the document "Guidelines for Students and Helpers", at the start of this Forum; in particular, pay attention to topic 5 (about how and why should not just post images).
 
Since it says "calculate", I would say there is a mistake in the question.
If it had said "estimate" then I would suggest drawing graph and fitting a smoothish curve to it.
 
haruspex said:
Since it says "calculate", I would say there is a mistake in the question.
If it had said "estimate" then I would suggest drawing graph and fitting a smoothish curve to it.

i just need a 'rough idea' on how to start this question. can someone help?
 
kelvin macks said:
i just need a 'rough idea' on how to start this question. can someone help?

I would be willing to help if you typed it out, but I do not look at attached photos of handwritten work. As I said, read the posting "Guidelines for students and helpers", topic 5.
 
kelvin macks said:
i just need a 'rough idea' on how to start this question. can someone help?
Was I not clear? There is no way to calculate it from the given information. You could estimate it, by the method I described.
 
The point is that you are told how many people there are between 30 and 49 but have NO way of knowing how many people are between 30 and 35. If the problem asked for the percent between 19 and 30 or between 19 and 49 then you could answer. But the way the problem is given, you cannot know how many people there are between 19 and 35 and so cannot know what the percentage is
 

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