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I can understand the probability of independent events with objects, pictures, and symbols (numbers).
Why it's important:
Why it's important:
In the media, you hear and read statements about the probability of everyday events, such as living to be 100 or winning the lottery. To make sense of these statements, you need to understand probability.
Probability
Probability
Probability is the chance that something will happen, or how likely it is that some event will happen.
Sometimes you can measure a probability with a number - "There is a 90% chance of rain" - or you can use words - "It will likely to rain tomorrow."
In general:
Probability of an event happening = Number of favourable outcomes/ Total number of outcomes
Listing outcomes
Listing outcomes
An outcome is a possible result of an experiment.
What are the possible outcomes?
What are the possible outcomes?
Theoretical vs. experimental probability
Theoretical vs. experimental probability
Theoretical probability
Theoretical probability
What we call "probability"; You find the probability by analyzing the possible outcomes rather than by experimenting. It is what we expect to happen based on the numbers.
Twenty counters were put in a bag:
7 green, 6 black, 5 orange, and 2 purple.
You reach into the bag to pull out a colour counter.
In theory, what is the probability of you picking:
a green counter from the bag?
a black counter from the bag?
an orange counter from the bag?
a purple counter from the bag?
What actually happened when you conducted the experiment?
Experimental probability is the result of conducting an experiment or playing a game.
Experimental probability
Experimental probability
Assignment 2 (you are to do all of the pages that go along with this assignment as well. Please correct them.)
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