Which of these is not a valid data source?

1) Hadoop

2) Variable files

3) Adobe Creative Cloud

4) Excel

5) Access

How many customers will respond to your survey when the return rate is 4%, your budget to send out surveys is $10,000 and it costs $2.50 to send out each survey?

1) 400

2) 160

3) 250

4) 4000

5) 2500

Which of the following would you not use data mining for?

1) Increasing sales by better targeting customers

2) Reducing costs by predicting machine failures

3) Classifying customers into groups based on usage patterns

4) Increasing sales by identifying normal credit card usage

5) Increasing sales by showing web visitors relevant products

Which of these is not a skill needed for data mining?

1) Certification in tools

2) Knowing the business

3) Knowing reasonable data values

4) Knowing which data is available

5) Assessing impacts of data on outcomes