Maths for biologists

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What is a null hypothesis?
A null hypothesis is a hypothesis that says there is no statistical significance between the 2 variables
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Describe how the scientist would have produced the calibration curve and used it to obtain the results in the graph?
Make up solutions of all the concentration of maltose . Then use a colorimeter and this will show a measurement of colour intensity. Then plot this on a graph to produce calibration curve which concentration can be obtained
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When do you use spearmans rank correlation?
When looking for associations between different measurements from the same sample
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When do you use a chi squared test?
Frequencies will your investigation involve finding the number of individuals in particular categories
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When do you use standard error of the mean and 95% confidence intervals?
When your investigation looks for difference between mean values
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Card 2

Front

Describe how the scientist would have produced the calibration curve and used it to obtain the results in the graph?

Back

Make up solutions of all the concentration of maltose . Then use a colorimeter and this will show a measurement of colour intensity. Then plot this on a graph to produce calibration curve which concentration can be obtained

Card 3

Front

When do you use spearmans rank correlation?

Back

Preview of the front of card 3

Card 4

Front

When do you use a chi squared test?

Back

Preview of the front of card 4

Card 5

Front

When do you use standard error of the mean and 95% confidence intervals?

Back

Preview of the front of card 5

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