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2.4
Graphs
Question | Answer |
---|---|
You conduct a quick survey asking friends to rate your new website on a scale of 1 - 10. Which graph will show how the responses are distributed? | Histogram. Keyword: Distribution (How many people answered 1, 2, 3...... NOTE: The histogram is a bar chart |
You have the number of customers that visit your website by clicking on a promotion email. Which graph can show you if sales are correlated to the number of promotional emails each week? | Scatter Diagram Keyword: Correlation or Relationship |
A relationship is stronger when r is closer to what number? | 1 (100%) |
A relationship is weakest when r is closer to what number? | 0 |
As sales increase, estimated delivery times decrease. This relationship is _______ | Negative |
As the age of the customer increases, the credit score increases. This relationship is_______ | Positive |
Which tool helps us collect and organize the data for a histogram? | Check sheet |