1
Q
why is a t test better than finding a range?
A
- less affected by anomalies
- takes into account every value in data
2
Q
when is an unpaired t test used?
A
when you’re comparing means
3
Q
what does standard deviation measure?
A
- spread of data around mean
- EXCLUDES extreme values
4
Q
what does a T test do? (Unpaired and paired)
A
- compares two means
- to see if there’s a significant difference
a level biology
flashcards
Decks in class (29)
# Cards
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2.1.1 Cell Structure42
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2.1.2 Biological Molecules68
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2.1.3 Nucleotides and Nucleic Acids24
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2.1.4 Enzymes35
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2.1.5 Biological Membranes36
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2.1.6 Cell Division70
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3.1.1 Exchange Surfaces45
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3.1.2 Transport In Animals46
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3.1.3 Transport In Plants56
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4.1.1 Diseases52
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4.2.1 Biodiversity53
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4.2.2 Classification And Evolution38
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practical stuff2
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5.1.1 Communication And Homeostatis36
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5.1.2 Excretion47
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5.1.3 Neuronal Communication18
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5.1.4 Hormonal Communication33
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5.1.5 Animal Responses47
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5.1.5 Plant Responses32
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5.2.1 Photosynthesis38
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5.2.2 Respiration48
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6.1.1 Cellular Control20
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6.1.2 Patterns Of Inheritance52
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6.1.3 Manipulating Genomes6
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6.2.1 Cloning And Biotechnology41
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6.3.1 Ecosystems41
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6.3.2 Populations And Sustainability32
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Statistics4
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4.1.1 Diseases, Immune System49
