Simon's copy of Mean, Median, Mode for Auto

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Simon Thomas 5 years, 11 months ago

Created this as a copy of Mean, Median, Mode for Auto.

Name	Status	Author	Last Modified
Mean, Median, Mode and Standard Deviation	draft	Julie Crowley	07/10/2016 21:43
Mean, Median, Mode for Auto	Ready to use	Julie Crowley	07/10/2016 21:41
Ioannis's copy of Mean, Median, Mode for Auto	draft	Ioannis Lignos	29/10/2017 00:40
Exam version of Mean, Median, Mode for Auto	draft	Julie Crowley	16/04/2018 18:08
Harry's copy of Exam version of Mean, Median, Mode for Auto	draft	Harry Flynn	15/11/2018 10:06
Michael's copy of Harry's copy of Exam version of Mean, Median, Mode for Auto	draft	Michael Proudman	07/12/2021 09:49
Simon's copy of Mean, Median, Mode for Auto	draft	Simon Thomas	25/03/2019 12:17
Simon's copy of Mean, Median, Mode and Standard Deviation	draft	Simon Thomas	25/03/2019 12:14
Mean, Median, Mode for Auto	draft	Xiaodan Leng	11/07/2019 05:26
Mean, Median, Mode	Ready to use	Paul Finley	05/12/2022 15:24
Mean, Median, Mode	Ready to use	Yvonne Wancke	03/05/2023 13:03
PRAC Mean, Median, Mode	Ready to use	Yvonne Wancke	05/01/2023 11:34
Ugur's copy of Mean, Median, Mode	Ready to use	Ugur Efem	14/01/2022 15:08
Ugur's copy of Ugur's copy of Mean, Median, Mode	Ready to use	Ugur Efem	22/04/2022 19:52
S2 EXAM Mean, median, mode	Ready to use	Yvonne Wancke	05/05/2023 04:26

There are 26 other versions that do you not have access to.

Question statement

The fuel emissions (in g/km of CO2) of a sample of 7 diesel cars of similar type have been recorded as follows:

$\var{a2}, \var{a7}, \var{a1}, \var{a5}, \var{a3}, \var{a6}$ and $\var{a4}$ .

Calculate the mean, median and mode of these emissions.

Give any introductory information the student needs.

			Name	Type	Generated Value

a1	integer	114
a3	integer	118
a2	integer	118
a5	integer	128
a4	integer	123
a7	integer	138
a6	integer	130

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(110..115)

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: `integer`

114

This variable doesn't seem to be used anywhere.

Parts

Part a) Gap-fill
1. Gap Mathematical expression
  Add
Part b) Gap-fill
1. Gap Number entry
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1. Step Information only
Part c) Gap-fill
1. Gap Number entry
  Add
1. Step Information only

Gap-fill

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

$\text{mean}=\;\;$Unnamed gap (correct to two decimal places)

Advice

(a)

There are 7 datapoints so the mean is

$\frac{\var{a2}+\var{a7}+\var{a1}+\var{a5}+ \var{a3}+ \var{a6}+\var{a4}}{7}=\var{precround((a1+a2+a3+a4+a5+a6+a7)/7,2)}$

(b)

To find the median, we first put our values in order:

$\var{a1},\var{a2},\var{a3},\var{a4},\var{a5},\var{a6},\var{a7}$

Then the middle value is $\var{a4}$

(c)

The mode is $\var{a2}$ as it is the only value which appears twice.

Give a worked solution to the whole question.

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Part	Test	Passed?
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Gap-fill		Hasn't run yet
Mathematical expression
Mathematical expression		Hasn't run yet
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Information only
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Information only

This question is used in the following exam:

Summary Statistics by Simon Thomas in Maths support.

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Taxonomy: mathcentre

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Simon Thomas 5 years, 11 months ago

Error in variable testing condition

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Warning

Generated value: `integer`

Parts

Gap-fill

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Simon's copy of Mean, Median, Mode for Auto

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Simon Thomas 5 years, 11 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`