Researchers carefully design experiments with independent and dependent variables to test predicted relationships among those variables

Mailing of a new offer to a handful of selected customers instead of all customers reduces the response rate to the offer

Indicate whether the statement is true or false

What is the guiding concept behind LinkedIn?

A) connecting with high-school classmates and old friends B) providing a point-to-point user connection among media C) establishing a "who you know" network of business colleagues D) setting parameters for professional networking