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WorksheetsProbability in Primary School
Total questions: 20
Worksheet time: 32mins
What is probability?
A mathematical equation
Measure of likelihood of an event
A random guess
A measure of time
What are dependent events in probability?
Events that are not related to each other.
Events that have no impact on each other.
Events that occur at the same time.
Events where the outcome of one event affects the outcome of another event.
Can you give an example of an independent event?
Flipping a coin
Rolling a dice
Drawing a card from a deck
Choosing a random number between 1 and 10
Can you give an example of a dependent event?
Flipping a coin
Rolling a dice
Choosing a random number
Drawing two cards from a deck without replacement
What is the probability when something is impossible?
0
1/4
1/2
1
What is the probability when something is certain?
0
1/4
1/2
1
What is the probability of landing on a B?
3/8
1/8
2/8
5/8
A bag has 10 blue marbles and 2 red marbles. Which word best describes my probability of picking out a RED marble?
impossible
unlikely
equally likely
likely
A bag has 10 blue marbles and 7 red marbles. Which fraction matches my probability of picking out a RED marble?
7/10
10/7
7/17
10/17
Looking at the picture, what is the probability that I will pick a green ball out of the bag?
4
4/10
1/2
4/6
If Mariana spins this spinner, she will MOST likely land on –
orange
blue
red
yellow
Which color marble is unlikely to be pulled from the jar?
Green
Red
Blue
What is probability?
The ability to "prob" something
The likelihood that an event will occur
Another name for a fraction
If I flip a coin, the probability of getting either heads or tails is 50%.
True or False.
True
False
