Spearman's Rank Correlation

correlation measures _______________ among variables.

• Direction of relationship

• intensity of relationship

• direction & intensity of relationship

• Cause & effect relationship

Tags

CCSS.HSS.ID.C.9

What enable us to examine the relationship between two variables in a scatter diagram?

• degree of closeness of the scatter points

• overall direction of the scatter points

• degree of closeness of the scatter points and their overall direction

• None of these

The value of simple correlation coefficient lies between

• 0 and +1

• 0 and -1

• +1 and -1

• 0 and 100

Tags

CCSS.HSS.ID.B.5

A line on a scatter plot which can be drawn near the points to more clearly show the trend between two sets of data is called

• Scatter Plots

• Outlier

• Line of best fit

• Regression LIne

This is a formula for finding correlation in which method?

• Standard Deviation

• Student t-test

• Spearman's Rank correlation

• Simpson's Index

What a hypothesis?

• an explanation about what you observed

• using your 5 senses to gather data

• the thing changed on purpose in the experiment

• an educated guess about what will happen in the experiment.

When is a hypothesis written?

• before you decide on a question

• after the experiment

• after the conclusion

• before the experiment

Before you start your statistical test, which hypothesis do you state?

• null hypothesis

• alternative hypothesis

Describe the correlation.

• Negative correlation

• No correlation

• Positive correlation

• Constant correlation

What type of correlation does this graph have?

• Positive correlation

• Negative correlation

• No correlation

• Constant correlation

Tags

CCSS.HSF-LE.A.1B