Investigating diversity

Question 1

What is the mode?

Answer 1

Number that appears the most

Question 2

What is the median ?

Answer 2

The middle value

Question 3

How could we collect data from random samples of a population ?

Answer 3

Divide the area into a grid
Use a random number generator to generate coordinates
Use a large number of samples to collect a reliable and representative sample
Then calculate a mean and the sd of that mean

Question 4

Standard deviations

Answer 4

Large sd means the sample Varys a lot and are less reliable and if so bars overlap then the differences between the groups of data are not significant

Question 5

Analysing p values

Answer 5

P is less than or equal to 0.05 the probability that the differences are due to chance are less than or equal to 5%
The differences are significant
Vise versa

Question 6

Statistical tests

Answer 6

Correlation coefficient is used when examining an association between two sets of data
Chi squared test is used when the data are catageric