The spokesman-review wants to know the public opinion on the construction of a new library downtown. it is decided that 48 people will be surveyed using a simple random sample. which of the following will produce a simple random sample?
number the residents using the latest census data, then use a random number generator to pick 48 people.
record the opinion of the first 48 people who visit the newspaper's website.
survey every fourth person who enters the current library until 48 have responded.
randomly select 48 people from the phone book.
randomly select 12 people each from the downtown, south hill, northwest, and hillyard parts of the city.