Year 8 Post Probability Test - null Widmer
Question 1
Question 2
True or false?
With a fair die, rolling a five and not rolling a five
have the same probability.
a) True
b) False
The probability of getting a green or pink result on
this spinner is:
a)
b)
c)
d)
Question 3
Question 4
If a coin is flipped and the die is rolled at the same
time, what is the probability of the coin landing on
heads?
(numerator)
A card is picked at random from these seven
cards. What is the probability that it shows a frog?
(denominator)
Question 5
Question 6
If two coins are flipped how many possible
Find the probability of ‘HI’ from the sample space
outcomes are there? below, expressing your answer as a percentage to
two decimal places. The probability is .
Question 7
Question 8
A letter from the word DOG is chosen and then a
A letter from the word APPLE is chosen and then a
letter from the word CAT is chosen. How many
letter from the word HI is chosen. How many
equally likely outcomes are there in total?
equally likely outcomes are there in total?
Question 9
Question 10
A letter from the word GO is chosen and then a
letter from the word STOP is chosen. How many
equally likely outcomes are there in total?
The four different groups shown in this table are:
a. mutually exclusive
b. not mutually exclusive
Question 11
Question 12
This diagram shows the number of students who
A group of people were asked if they owned a cat
study history and/or art.
and/or a dog.
The two-way table shows the results.
How many students study both history and art?
What is the probability of randomly selecting a person
who does not own a cat or a dog?
P(owns neither a cat or a dog) = Question 13
5
Question 14
What is the probability of randomly selecting a
What is the probability of the spinner landing on 3
tulip from this shop?
?
19
5
Question 15
Number of matches 29 30 31 32
Number of boxes
18 62 14 6
A box of matches is supposed to contain 30 matches. However, this number varies slightly between
boxes.
The table shows a survey of 100 boxes.
If one of these boxes were selected at random, what is the probability that it would contain exactly 30 matches
Give your answer as a percentage.
%