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# Writing Probabilities

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by

## Mr Mattock

on 4 January 2017

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#### Transcript of Writing Probabilities

Writing Probabilities
Starter
Writing Probabilities
How many boys in the room?

What is the probability of a student selected at random being a boy?
Example
In a particular football team of eleven there are 4 left-footed players.

What is the probability that a player selected at random is left-footed?
L.O. - To write probabilities using fractions.

55 >> +9 , ÷8 , x7 , -14 , ÷3 , ÷2 , square , +11 , ÷4 ………….

14 >> +16 , x2 , +3 , ÷9 , -5 , square , square , +20 , ÷4 ………….

27 >> ÷9 , square , x6 , -40 , x2 , +8 , ÷6 , +19 , ÷5 ………….

10 >> square , ÷4 , ÷5 , +3 , square , -10 , ÷6 , +4 , x2 ………….

70 >> ÷2 , +5 , ÷5 , +4 , x5 , ÷10 , square , +12 , ÷8 ………….
Main Activity
Bingo
Enter any of the fractions on the next screen
the probability question and you have them in
your grid then cross them off. Cross off all 9 and
BINGO!
Starter

55 >> +9 , ÷8 , x7 , -14 , ÷3 , ÷2 , square , +11 , ÷4 …
15
.

14 >> +16 , x2 , +3 , ÷9 , -5 , square , square , +20 , ÷4 …
7
.

27 >> ÷9 , square , x6 , -40 , x2 , +8 , ÷6 , +19 , ÷5 …
5
.

10 >> square , ÷4 , ÷5 , +3 , square , -10 , ÷6 , +4 , x2 …
26
.

70 >> ÷2 , +5 , ÷5 , +4 , x5 , ÷10 , square , +12 , ÷8 …
6
.
Complete the Writing Probability Sheet
Main Activity
Complete the Writing Probability Sheet
(b) (h)

(c) (i)

(d) (j)

(e) (k)

(f) (l)

(g)
2
8
3
8
3
8
1
8
3
8
3
8
6
8
1
8
2
8
1
8
5
8
(b)

(c)

(d)

(e)

(f)
2

3

4

1
8
2
8
1
8
0
8
3
8
There are three 3s
Example
In a particular football team of eleven there are 4 left-footed players.

What is the probability that a player selected at random is left-footed?
4
11
Activities
Activity