Probabilities of certain and impossible events

Error

There was an error loading the page.

Contributors

Feedback

From users who are members of Transition to university :

Christian Lawson-Perfect	said	Ready to use	7 years, 8 months ago
Elliott Fletcher	said	Needs to be tested	7 years, 8 months ago
Lauren Richards	said	Has some problems	7 years, 8 months ago

History

○

Elliott Fletcher 7 years, 8 months ago

Published this.

○

Christian Lawson-Perfect 7 years, 8 months ago

Gave some feedback: Ready to use

○

Christian Lawson-Perfect 7 years, 8 months ago

Saved a checkpoint:

A nice simple question.

Restore this checkpoint

○

Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

○

Lauren Richards commented 7 years, 8 months ago

I don't think that the 6 in 6-sided dice should be in latex form personally.

In the advice, you have spaces between the hyphens of 6-sided the second time you mention it but not the first.

"teachers" should be "teacher's" and I think I would say "that the teacher's class is comprised of 20 girls." rather than "that the teacher's class is a class of 20 girls."

I think I would say "Therefore" instead of "So" in the advice.

Good use of bold in the advice, picking out the key bits of information.

○

Lauren Richards 7 years, 8 months ago

Gave some feedback: Has some problems

○

Elliott Fletcher commented 7 years, 8 months ago

Will try to add an image from inkscape to this as well, but just thought i'd set its status to "Needs to be tested" in the meantime.

○

Elliott Fletcher 7 years, 8 months ago

Gave some feedback: Needs to be tested

○

Elliott Fletcher 7 years, 8 months ago

Created this.

There is only one version of this question that you have access to.

There is one other version that you do not have access to.

Question statement

Probability is the chance that an event will occur.

A certain event is an event that will definitely happen and therefore has a probability of $1$ .

An impossible event is an event that will never happen and therefore has a probability of $0$ .

Give any introductory information the student needs.

			Name	Type	Generated Value

			dice	integer	7
			students	integer	30

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(7,8,9)

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`

This variable doesn't seem to be used anywhere.

Parts

Part a) Gap-fill
1. Gap Gap 0. Choose one from a list
  Add
2. Gap Gap 1. Choose one from a list
  Add
Part b) Gap-fill
1. Gap Gap 0. Choose one from a list
  Add
2. Gap Gap 1. Choose one from a list
  Add

Gap-fill

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

A fair $6$ -sided die is rolled. The probability that the die lands on a $\var{dice}$ is Gap 0.. Therefore, we say that this event is Gap 1..

Advice

a)

We are told that a fair, $6$ -sided die is thrown.

The sides on a fair, $6$ -sided die are numbered $1$ to $6$ . There is no $7$ on such a die.

Therefore, there is no chance of the die landing on a $7$ , which means that the probability of the die landing on a $7$ must be $0$ .

Hence, this is an impossible event.

b)

We are told that a teacher chooses a student at random from a class of $20$ girls.

The key piece of information to notice here is that the teacher's class is comprised of $20$ girls. Everybody in the class is a girl.

Therefore, the student that the teacher randomly chooses from the class must be a girl, which means that the probability that the student chosen is a girl is $1$ .

Hence, this is a certain event.

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
Choose one from a list
Choose one from a list		Hasn't run yet
Choose one from a list
Choose one from a list		Hasn't run yet
Gap-fill
Gap-fill		Hasn't run yet
Choose one from a list
Choose one from a list		Hasn't run yet
Choose one from a list
Choose one from a list		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.
Probability by Christian Lawson-Perfect in Transition to university.
Introduction to Probability by Robert Aykroyd in Robert's workspace.
Probability by steve kilgallon in Stats and probability.
Introduction to Probability by Katie Bullen in Katie's workspace.
NUMBAS - Probability by Katy Dobson in Katy's workspace.
Probability by Simon Thomas in Stats.
Maria's copy of Introduction to Probability by Maria Aneiros in Maria's workspace.
Possible applicable questions from previous year by Tom Bold in Transition to university maths.
Probability 1 by Jeremie Wenger in Jeremie's workspace.
Offer Holder Day by Chris Graham in Chris's workspace.
Maths 1A - Homework Week 10 (Probability) by Maria Aneiros in MY QUESTIONS.
Shaheen's copy of Probability by Shaheen Charlwood in Shaheen's workspace.
Probability Exam by Anna Cartlidge in Glasgow Numbas Question Pool.
Transition Probability by Chris Templet in Chris's workspace.
W14: Probability 1 by Alastair Ball in IQT.
Alastair's copy of W14: Probability 1 by Alastair Ball in IQT.
W14: Probability 1 by Alastair Ball in QTEF1.

Loading...

Error

Probabilities of certain and impossible events

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

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 7 years, 8 months ago

Lauren Richards commented 7 years, 8 months ago

Lauren Richards 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: `integer`

Parts

Gap-fill

a)

b)

Loading...

Error

Probabilities of certain and impossible events

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

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 7 years, 8 months ago

Lauren Richards commented 7 years, 8 months ago

Lauren Richards 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: integer

Parts

Gap-fill

a)

b)

Generated value: `integer`