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Year 8 - Probability and Statistics Flashcards | StudBud
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Year 8 - Probability and Statistics
Year 8 - Probability and Statistics
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Year 8 - Probability and Statistics
Flashcards
40 cards
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Practice quiz
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Questions
40
Answers
1
when something has absolutely no chance of occurring we say it has ______ chance of happening?
100%
massive
little
zero
2
what is the probability of getting green on this spinner
impossible
even chance
likely
certain
3
if i was to flip a coin 100 times, how many times would you expect to get tails
1
50
100
2
4
if i flipped two coins at once, what is the probability of getting two heads?
2/1
impossible
1/4
1/2
5
What word is
NOT
typically used to describe probability?
maybe
even chance
very likely
impossible
6
what is the probability of rolling an 8 with a standard dice
1/6
8
0
1
7
what colour has the highest probability of occurring?
red
green
blue
purple
8
what is the probability of rolling higher than a 4 using a standard dice?
1/6
2/6
4/6
3/6
9
How many outcomes are there on a typical coin?
1
2
tails
heads
10
What is the definition of 'Outcome"
One of the possabilities that will occur during an event
The result of a single trial
Flipping a coin or rolling a dice
A measure of the likelihood of an event will occur.
11
what is the definition of a "trial"?
A number between 0 and 1
A collection of all possible end results
A measure of the likelihood that an event will occur.
One run (or attempt) of an experiment. (eg rolling a dice)
12
If these marbles were in a bag, What is the probability of picking a BLUE at random?
impossible
likely
certain
unlikely
13
what is the probability of rolling two dice and getting a score of two?
1/12
1/36
2/6
1/6
14
what is the probability of rolling an even number with a standard dice
2/6
3/6
1/6
6/6
15
What is the probability of getting yellow on this spinner?
1
0
0.25
0.51
16
find Pr(blue)
1/2
3/5
3/8
1/5
17
What is the sample space for the roll of a dice?
the dice
six
one
1,2,3,4,5,6
18
What is the probaility of NOT getting blue
2/3
1/3
1/4
3/4
19
Sally rolled a dice and declared "i got a six" what would "rolling a six" be reffered to as?
the outcome
Trial
event
Probability
20
If these marbles were in a bag, What is the probability of picking a red or black at random?
2/3
2/10
8/10
5/10
21
If these marbles were in a bag, What is the probability of
NOT
picking a red at random?
5/5
1/5
1/2
2/3
22
What is the probability of rolling a six using a standard dice?
0
1
6
1/6
23
Probability of an event is normally measured from which two numbers
1 and 6
0 and 1
0 and 10
1 or 2
24
What is the probability of getting green, blue, red, or a yellow on the next spin?
likely
certain
even chance
impossible
25
If these marbles were in a bag, What is the probability of
NOT
picking a black at random?
7/10
3/10
1/3
2/3
26
If I flip a coin four times, what would one flip be called
a trial
an experiment
27
Find Pr(
NOT
yellow)
7/8
4/5
1/8
1/5
28
The formula for probability is?
(number of desired outcomes) ÷ (number of total outcomes)
(number of trials) ÷ (number of events)
(number of trials) ÷ (number of outcomes)
(number of total outcomes) ÷(number of trials)
29
How many trials is there if i flip one coin four times?
1
2
3
4
30
If I wanted to flip a coin several times to see what i would get. what Is this called?
An experiment
A trial
31
Find the probability of getting blue
3/5
1/5
3/8
1/2
32
If all these marbles were in a bag. What is the probability a green is selected at random?
1/3
5/10
3/10
2/10
33
If these marbles were in a bag, What is the probability of picking a red or black at random?
4/5
1/2
2/3
1/5
34
what is the sample space of a coin
$1
heads, tails
2
1,2
35
what is the probability of rolling higher than a four.
6 out of 4
4 out 6
1 out of 6
2 out of 6
36
what is the probability of getting heads when flipping a coin
certain
likely
impossible
even chance
37
What is the probability of getting red
OR
green on this spinner
3/4
1/4
2/3
2/4
38
What is the definition of sample space
Flipping a coin or rolling a dice.
One attempt at conducting an experiment.
A selection of some possible outcomes
The list of all possible outcomes that can occur.
39
If these marbles were in a bag, What is the probability of
NOT
picking a GREEN at random?
8/10
7/10
3/10
2/10
40
Find Pr(blue
OR
red)
4/8
6/8
2/5
2/8
