Statistics....Data Distribution

To do market research, a telemarketing firm randomly selected 1000 names from a store's database and contacted them. Classify the sampling method.

• simple random

• systematic Random

• voluntary

• convenience

To get reactions about a particular new car, readers of a car magazine were asked to mail in their answers to a survey. Classify this sampling technique.

• simple random

• systematic Random

• voluntary

• convenience

When a random sample starting

point is chosen, followed by every

n-th individual, this sampling

method is

• simple random sampling

• stratified random sampling

• systematic random sampling

• Voluntarily random sampling

An easily accessible

sample is chosen

• simple sample

• systematic sample

• voluntary sample

• convenience sample

The population is invited to

respond

• simple sample

• systematic sample

• voluntary sample

• convenience sample

Everyone in the sample

has equal chance

• simple sample

• systematic sample

• voluntary sample

• convenience sample

Our class studying the weather patterns in NC to predict

for the entire United States

• simple sample

• systematic sample

• voluntary sample

• convenience sample

Bob asks 10 of his friends to determine what

percentage of students participate in sports.

• simple sample

• systematic sample

• voluntary sample

• convenience sample

Which measure of center best represents this set of data?
red, blue, red, yellow, red, green, black, red, white, red, red

• Mean
• median
• mode

If you want to find out which color MOST students favor, you should use which measure of center?

• Mode

• Median

• Mean

• Range