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Probability

Test your understanding of probability and the 0-1 probability scale with this self marking quiz.

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This is level 1: calculating the probability of a single event occuring.  Type in your answers as fractions in their lowest terms.  You can earn a trophy if you get at least 7 questions correct.

There are 7 balls on a snooker table. Three of the balls are red, one is blue, one pink, one yellow and one white.

Snooker Table

If one ball is chosen at random, what is the probability it is yellow?

Correct Wrong

If one ball is chosen at random, what is the probability it is red?

Correct Wrong

If one ball is chosen at random, what is the probability it is not white?

Correct Wrong

Probability question
Correct Wrong

What is the probability that the number of candles on the cake is less than five?

Correct Wrong

Probability question
Correct Wrong

What is the probability that the card is a Queen?

Correct Wrong

Probability question
Correct Wrong

There are nine counters in a bag numbered from one to nine. If a counter is drawn at random from the bag what is the probability that the number on the counter is not a multiple of three?

Correct Wrong

United and City are playing each other in the final. It has been calculated that the probability of United winning is three fifths. What is the probability of United not winning?

Correct Wrong

Check

This is Probability level 1. You can also try:
Level 2 Level 3 Level 4 Level 5

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

Why am I learning this?

Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician?

Comment recorded on the 7 December 'Starter of the Day' page by Cathryn Aldridge, Pells Primary:

"I use Starter of the Day as a registration and warm-up activity for my Year 6 class. The range of questioning provided is excellent as are some of the images.
I rate this site as a 5!"

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"A Maths colleague introduced me to your web site and I love to use it. The questions are so varied I can use them with all of my classes, I even let year 13 have a go at some of them. I like being able to access Starters for the whole month so I can use favourites with classes I see at different times of the week. Thanks."

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Tower of Hanoi

Tower of Hanoi

Move the pieces of the tower from one place to another in the minimum number of moves. This puzzle was invented in 1883 but is still as captivating today as it was all those years ago.

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Description of Levels

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Level 1 - Calculating the probability of a single event occuring

Level 2 - Calculating the probability of a single event occuring from a two-way table

Level 3 - Calculating the probability of a single event occuring then deciding the expected number of times it will occur in a given number of trials

Level 4 - Finding the probability of a combined event occuring by drawing a table to represent the possibility space

Level 5 - Calculating probability of an event occuring by listing all the possible outcomes

Exam Style questions are in the style of GCSE or IB/A-level exam paper questions and worked solutions are available for Transum subscribers.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

Example

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

Log in Sign up

If you are not familiar with standard playing cards here is a guide.

There are 52 cards in a pack (usually called a deck). The cards are grouped into four suits of 13 cards each. these suits are called clubs, diamonds, hearts and spades. Click on a tab below to see the cards in each of these suits.

Hearts ♥ Diamonds ♦ Clubs ♣ Spades ♠

Hearts

Ace of Hearts

Two of Hearts

Three of Hearts

Four of Hearts

Five of Hearts

Six of Hearts

Seven of Hearts

Eight of Hearts

Nine of Hearts

Ten of Hearts

Jack of Hearts

Queen of Hearts

King of Hearts

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