G8 Data Science P1

Which statement is correct for positive correlation graph observation and analysis?

• As one of two variables in a graph increases, the other one increases too.

• As one of two variables in a graph increases, the other one decreases

• As one of two variables in a graph increases, other factors affect the data.

• None matters.

Data that sits outside a graph trend in known as

• outlier

• range

• rigid

• none

The comparison of two variables to determine the strength of its relationship is called...

• correlation

• regression

• progression

• covariance

The comparison of two variables to determine the strength of its relationship is called...

• correlation

• regression

• progression

• covariance

The comparison of two variables to determine the strength of its relationship is called...

Tick all components of an investigative cycle

• Problem

• Plan

• Data

• Analysis

• Conclusions

Which Investigative component could a question below should be?

“What is the average number of goals scored in the first half for teams in the Premier League?”

• Problem

• Plan

• Data

• Analysis

• Conclusions

Which Investigative component could the follow steps should be?

Working out

where will to get the data?; predicting an answer;

find data set; evaluate the quality of data; & planning collect it.

• Problem

• Plan

• Data

• Analysis

• Conclusions

Which Investigative component could the following steps should be?

Gathering the data and cleansing it (detecting and correcting, removing corrupt or inaccurate data.

• Problem

• Plan

• Data

• Analysis

• Conclusions

Which Investigative component could the following steps should be?

Observing & visualising the data; Spot any patterns, trends, correlations, and outliers.

• Problem

• Plan

• Data

• Analysis

• Conclusions