PHP is an open source, general purpose scripting language that is most frequently used in server-side Web applications to generate dynamic Web page content

Responses given because the respondents attempt to guess the purpose of the experiment and respond accordingly are called ________

A) nonresponse bias B) environmental constraints C) demand artifacts D) sample controls E) guessing bias

Using Table 12-6, what is the average number of customers in the coffee shop?

A) 0.0833 B) 0.5 C) 0.75 D) 1.33 E) 2