Week 18 Frequency

Probability Recap
Tree Diagrams
Frequency Trees
Revision:
Circles
Pie Charts

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​Frequency

​Probability Recap - Answer as many as you can of the following questions.....

Fill in the Blank

What is the probability Ralph picks a 8?

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Fill in the Blank

What is the probability the chosen card is an even card?

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Fill in the Blank

What is the probability the chosen card is a number less than 7?

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Fill in the Blank

What is the probability the chosen card is a multiple of 4?

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Fill in the Blank

What is the probability the chosen card is a square number?

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Fill in the Blank

What is the probability the chosen card is a prime number?

/

Fill in the Blank

What is the probability the counter taken is yellow?

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Hotspot

There are 8 marbles in a bag. 4 marbles are red. 3 marbles are blue. 1 marble is green. One marble is selected at random from the bag.

Hotspot

There are 8 marbles in a bag. 4 marbles are red. 3 marbles are blue. 1 marble is green. One marble is selected at random from the bag.

​Probability Scales

​Probability Trees

​Probability Trees

​What do you notice?

​Probability Trees

​Probability Trees

Labelling

Hannah is going to play one game of chess and one game of backgammon. The probability she will win the game of chess is 0.6 The probability she will win the game of backgammon is 0.7. Complete the probability tree diagram.

Drag labels to their correct position on the image

0.3

0.7

0.6

0.4

0.7

0.3

Fill in the Blank

What is the probability that Hannah will win both game?

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​Your Turn - Answer the questions in the time given

Frequency Trees - Example

​2424

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​There are 24 children in a class.
14 are boys
Here is the information

​How many girls?

​24

​14

Frequency Trees - Example

​2424

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​100 people were asked whether they preferred Coca Cola or Pepsi. Complete the frequency tree to show the information.

​56

​25

​24

Fill in the Blank

How many boys are there?

Fill in the Blank

20 girls do chemistry how many do physics?

Fill in the Blank

25 students in total studied biology. How many boys studied biology?

Fill in the Blank

Fill in the last box. How many boys did chemistry?

​Your Turn - Answer the questions in the time given

Labelling

Label this circle

Drag labels to their correct position on the image

Sector

Circumference

Tangent

Radius

Centre

Arc

Chord

Diameter

Segment

Circles

​Pie Charts

​Pie Charts

​Pie Charts - your turn