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D1
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D1
Probability:
Probability is the chance of something happening or not happening.
The chance of something happening is 1  the chance of it not happening.
Example:
P(it raining tomorrow) = ?
P(it not raining tomorrow) = 0.7
P(it raining tomorrow)
The probability of something happening or another thing happening = P(no.1) + P(no.2)
Example:
P(picking a green marble in a bag) = 0.45
P(picking a purple marble in a bag) = 0.3
P(picking a purple or green marble in a bag) =
P(picking a green marble in a bag) +
P(picking a purple marble in a bag) = 0.45 + 0.3 = 0.75
The Probability of something happening and another thing happening = P(no.1) x P(no.2)
Example:
P(flipping a tails) = 0.5
P(flipping a heads) = 0.5
P(Flipping heads and then tails) =
P(flipping a heads)
x
P(flipping a tails) = 0.5 x 0.5 = 0.25
Graphs
There are 4 common types of graphs
The first one is a Histogram:
Histograms are normally used to show two numerical values.
The next one is a Bar Chart:
Bar Charts are normally used to how much of something or how many times something happens to certain articles.
The next one is a Pie Chart:
Pie charts are normally used to see what percentage of people do certain things.
The last one is a Line Graph
Line graphs are normally used to show change in a certain area
By Muhammed
Edited by Ross
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D1
Probability:Probability is the chance of something happening or not happening.
The chance of something happening is 1  the chance of it not happening.
Example:
P(it raining tomorrow) = ?
P(it not raining tomorrow) = 0.7
P(it raining tomorrow)
The probability of something happening or another thing happening = P(no.1) + P(no.2)
Example:
P(picking a green marble in a bag) = 0.45
P(picking a purple marble in a bag) = 0.3
P(picking a purple or green marble in a bag) = P(picking a green marble in a bag) + P(picking a purple marble in a bag) = 0.45 + 0.3 = 0.75
The Probability of something happening and another thing happening = P(no.1) x P(no.2)
Example:
P(flipping a tails) = 0.5
P(flipping a heads) = 0.5
P(Flipping heads and then tails) = P(flipping a heads) x P(flipping a tails) = 0.5 x 0.5 = 0.25
Graphs
There are 4 common types of graphs
The first one is a Histogram:
Histograms are normally used to show two numerical values.
The next one is a Bar Chart:
Bar Charts are normally used to how much of something or how many times something happens to certain articles.
The next one is a Pie Chart:
Pie charts are normally used to see what percentage of people do certain things.
The last one is a Line Graph
Line graphs are normally used to show change in a certain area
By Muhammed
Edited by Ross