IA1 revision marine

Estimate the correlation coefficient for this scatterplot.

• r = 0.56

• r = -0.56

• r = 0.92

• r = -0.92

R2 of 0.8 is considered

• strong correlation

• good correlation

• poor correlation

• no correlation

Identify means to

• show the trends

• Establish or indicate something

• key characteristics

• how and why

Describe the correlation in the graph shown.

• Strong Negative Linear

• Strong Positive Linear

• Weak Negative Linear

• Weak Positive Linear

When p <0.05 then

• there is no significant difference

• there is a significant difference

n is the number of a ........

• species at site

• total of all species at site

• n(n-1)

• no significant difference.

N is the number of

• N(N-1)

• number of each species

• individuals at all sites

• a description of all the characteristics

Contrast is to.....

• showing the trends

• listing similarities and differences

• identifying characteristics

• how and why

COTS are

• commercial off the shelf

• crown of thorns star fish

• coloured outlier tanks

Aragonite is a

• calcium based mineral

• aluminium based mineral