Creating Frequency Tables

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From users who are members of Transition to university :

Chris Graham	said	Ready to use	7 years, 7 months ago
Elliott Fletcher	said	Needs to be tested	7 years, 8 months ago
Christian Lawson-Perfect	said	Has some problems	7 years, 8 months ago
Vicky Hall	said	Has some problems	7 years, 8 months ago

History

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Chris Graham 7 years, 7 months ago

Gave some feedback: Ready to use

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Chris Graham commented 7 years, 7 months ago

Added tallies to the first table, rather than giving an empty table followed by the table with frequencies entered. And shortened the advice signficantly to make it more concise.

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Elliott Fletcher 7 years, 8 months ago

Published this.

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Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

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Chris Graham 7 years, 8 months ago

Gave some feedback: Has some problems

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Chris Graham commented 7 years, 8 months ago

I would suggest moving the current statement to the top of the advice and then move everything before "Complete the frequency table" into the statement. Perhaps the scores could go into a table.

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Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

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Christian Lawson-Perfect 7 years, 8 months ago

Gave some feedback: Has some problems

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Christian Lawson-Perfect 7 years, 8 months ago

Saved a checkpoint:

The advice is pretty redundant! A list of sentences of the form "the number of students who scored X is Y" is effectively the same information as the table.

The advice should explain how to get the answer. I did it by writing rows labelled 0 to 10, and tallying as I worked through the list. How would you do it? Just describing one or two methods, and giving the correct answer, is enough.

Restore this checkpoint

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Elliott Fletcher commented 7 years, 8 months ago

Thanks for the feedback Vicky, i asked Christian and he helped me make the numbers variable

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Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

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Vicky Hall 7 years, 8 months ago

Gave some feedback: Has some problems

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Vicky Hall commented 7 years, 8 months ago

I was just wondering that about the the variables Elliott. I'm not sure how to do it but Chris or Christian may be able to. The only other thing I would do is put commas in your list of numbers to separate them a bit more clearly.

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Elliott Fletcher commented 7 years, 8 months ago

I tried to use variables for this question, but i'm not really sure it's possible.

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Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

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Elliott Fletcher 7 years, 8 months ago

Created this.

Name	Status	Author	Last Modified
Creating Frequency Tables	Ready to use	Elliott Fletcher	20/11/2019 14:36
Creating Frequency Tables	draft	Xiaodan Leng	11/07/2019 02:05

There are 14 other versions that do you not have access to.

Question statement

A maths test in a Year 7 class of $20$ students was scored out of $10$ . The marks awarded to the students were as follows:

$\var{data[0]}$	$\var{data[1]}$	$\var{data[2]}$	$\var{data[3]}$	$\var{data[4]}$	$\var{data[5]}$	$\var{data[6]}$	$\var{data[7]}$	$\var{data[8]}$	$\var{data[9]}$
$\var{data[10]}$	$\var{data[11]}$	$\var{data[12]}$	$\var{data[13]}$	$\var{data[14]}$	$\var{data[15]}$	$\var{data[16]}$	$\var{data[17]}$	$\var{data[18]}$	$\var{data[19]}$

Give any introductory information the student needs.

			Name	Type	Generated Value

data	list	List of 20 items
frequencies	list	List of 11 items
tallies	list	List of 11 items

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
repeat(min(max(precround(normalsample(6,2.5),0),0),10),20)

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `list`

[ 10, 6, 8, 10, 4, 9, 4, 10, 4, 8, 7, 4, 4, 9, 6, 9, 4, 10, 2, 2 ]

This variable doesn't seem to be used anywhere.

Parts

Gap-fill
1. Gap Gap 0. Number entry
  Add
2. Gap Gap 1. Number entry
  Add
3. Gap Gap 2. Number entry
  Add
4. Gap Gap 3. Number entry
  Add
5. Gap Gap 4. Number entry
  Add
6. Gap Gap 5. Number entry
  Add
7. Gap Gap 6. Number entry
  Add
8. Gap Gap 7. Number entry
  Add
9. Gap Gap 8. Number entry
  Add
10. Gap Gap 9. Number entry
  Add
11. Gap Gap 10. Number entry
  Add

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

Complete the frequency table for this data.

Score	Frequency
$0$	Gap 0.
$1$	Gap 1.
$2$	Gap 2.
$3$	Gap 3.
$4$	Gap 4.
$5$	Gap 5.
$6$	Gap 6.
$7$	Gap 7.
$8$	Gap 8.
$9$	Gap 9.
$10$	Gap 10.

Advice

Frequency is the number of times that an event occurs (in this case, obtaining a certain score) within a particular experiment (in this case, the exam).

We are given enough data that keeping a mental count of the frequencies is difficult:

$\var{data[0]}$	$\var{data[1]}$	$\var{data[2]}$	$\var{data[3]}$	$\var{data[4]}$	$\var{data[5]}$	$\var{data[6]}$	$\var{data[7]}$	$\var{data[8]}$	$\var{data[9]}$
$\var{data[10]}$	$\var{data[11]}$	$\var{data[12]}$	$\var{data[13]}$	$\var{data[14]}$	$\var{data[15]}$	$\var{data[16]}$	$\var{data[17]}$	$\var{data[18]}$	$\var{data[19]}$

Therefore, a better way to approach this problem would be to add an extra column to the frequency table, as illustrated below, to tally the number of students with each score. The number of tally marks for each score can then be read off and insterted into the frequency column.


Score	Tally	Frequency
$0$	{tallies[0]}	$\var{frequencies[0]}$
$1$	{tallies[1]}	$\var{frequencies[1]}$
$2$	{tallies[2]}	$\var{frequencies[2]}$
$3$	{tallies[3]}	$\var{frequencies[3]}$
$4$	{tallies[4]}	$\var{frequencies[4]}$
$5$	{tallies[5]}	$\var{frequencies[5]}$
$6$	{tallies[6]}	$\var{frequencies[6]}$
$7$	{tallies[7]}	$\var{frequencies[7]}$
$8$	{tallies[8]}	$\var{frequencies[8]}$
$9$	{tallies[9]}	$\var{frequencies[9]}$
$10$	{tallies[10]}	$\var{frequencies[10]}$

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet

This question is used in the following exams:

Probability by Elliott Fletcher in Elliott's workspace.
Probability by Elliott Fletcher in Elliott's workspace.
Presenting data by Christian Lawson-Perfect in Transition to university.
Week 4 - Practice Exercises by Bobby Kahlon in Bobby's workspace.
Nick's copy of Presenting data by Nick Walker in Nick's workspace.
Presenting data by Lauren Frances Desoysa in Newcastle University Sports Science.
Presenting data by Chris Graham in Newcastle University Sports Science.
Week 3 - Practice Exercises by Bobby Kahlon in Bobby's workspace.
Module 3 by Niharika Singh in Niharika's workspace.
Transition Frequencies by Chris Templet in Chris's workspace.
claire's copy of Presenting data by claire lines in claire's workspace.

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

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Comment

Checkpoint description

Chris Graham 7 years, 7 months ago

Chris Graham commented 7 years, 7 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Chris Graham 7 years, 8 months ago

Chris Graham commented 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Christian Lawson-Perfect 7 years, 8 months ago

Christian Lawson-Perfect 7 years, 8 months ago

Elliott Fletcher commented 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Vicky Hall 7 years, 8 months ago

Vicky Hall commented 7 years, 8 months ago

Elliott Fletcher commented 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: `list`

Parts

Gap-fill

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Error

Creating Frequency Tables

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Chris Graham 7 years, 7 months ago

Chris Graham commented 7 years, 7 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Chris Graham 7 years, 8 months ago

Chris Graham commented 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Christian Lawson-Perfect 7 years, 8 months ago

Christian Lawson-Perfect 7 years, 8 months ago

Elliott Fletcher commented 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Vicky Hall 7 years, 8 months ago

Vicky Hall commented 7 years, 8 months ago

Elliott Fletcher commented 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Elliott Fletcher 7 years, 8 months ago

Error in variable testing condition

Error

Warning

Generated value: list

Parts

Gap-fill

Generated value: `list`