Probability Terms
What is probability?
The chances of an event happening.
What is a survey?
The method used to gather information from people?
If a bar graph shows that 10 students like soccer, 5 like basketball, and 3 like baseball, which sport is the most popular?
Soccer
If you roll a 6-sided die, what is the probability of rolling a number greater than 4?
1 out of 3
The term for an event that will definitely happen.
Certain
Give an example of when you could use a tally chart.
...
How can you find out how many more students like ice cream than cake if 12 like ice cream and 8 like cake?
Subtract 8 from 12
In a spinner divided into 4 equal parts, what is the probability of landing on red if there is 1 red section?
1 out of 4
What do we call an event that cannot happen at all?
Impossible
What's it called when you display data using bars?
Bar graph
If a pictograph shows 4 apples representing 4 students, how many students does 1 apple represent?
1 student
If you have a bag with 3 red marbles and 2 blue marbles, what is the probability of picking a blue marble?
2 out of 5
If you flip a coin, what is the probability of getting heads?
1 out of 2, or 50%
What is collecting data?
If you ask your friends what their favorite color was and wrote down the results.
How can you tell what option is the most popular in a bar graph?
Which bar is the tallest.
If you flip a coin twice, what are the possible outcomes?
What are "heads-heads, heads-tails, tails-heads, tails-tails"?