1. Mathsercise-C
Ready?
Probability
Here we go!

2. 1 The probability of it raining is 0.3
What is the probability of it not raining?
Question 2
1 – 0.3 = 0.7
Probability is between 0 and 1
So..the probability of something not happening is
1 – P(happening)
Answer 1
Probability

3. 2 A train can be early, on time, or late.
The probability of it being late is 0.63, the probability of being early is 0.1
What is the probability of it being on time?
Question 3
Answer
1 – 0.1 – 0.63 = 0.27 2
Probability

4. 3 Here is a probability table of students favourite colours..
Question 4
Grey
Colour
Probability
Blue
Brown
Pink
0.1
0.3
0.2
0.4
1.0
Work out the probability of choosing blue
Answer 3
Probability

5. 4 Here is a probability table of students favourite pets..
Start
Animal
Rabbit
Dog
Mouse
Cat
Probability
0.17
0.4
0.17
0.26
1.0
If the probability of the Rabbit and Mouse is the same, work out the missing values
Answer
1 – 0.4 – 0.26 = 0.34 4
0.34 ÷2 = 0.17
Probability