1
Q
What does correlation measure?
A
The strength and direction of a linear relationship between two variables.
2
Q
What is the product moment correlation coefficient (PMCC) denoted by and what does it describe?
A
- denoted by r
- describes the linear correlation between two variables
3
Q
What is the range of the correlation coefficient 𝑟?
A
−1≤ r ≤1
4
Q
What does the probability 3/5 on the branch represent in conditional probability notation?
A
5
Q
On a probability tree, what are all probabilities that are after the first set of branches?
A
conditional probabilities
6
Q
For independent events, what is the general rule for conditional probability?
A
- as B occurring does not change the probability of A
7
Q
A
Maths: Applied
flashcards
Decks in class (9)
# Cards
-
Stats Y1, C1 (populations vs samples)10
-
Stats Y1, C1 (random sampling)16
-
Stats Y1, C1 (non-random sampling and types of data)18
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Stats Y1, C2 (key concepts/formulas)28
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Stats Y1, C3-C7 (Key things to remember)31
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Mechanics Y1, C8-C938
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Mechanics Y1, C10-C1123
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Stats Y2, C1 - C27
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Chapter 3 stats yr 218
