BTEC Stats practice

A group of individuals or objects that you want to study is the:

• sample

• population

A part of the population is the:

• population

• sample

a part of the population that is large enough, selected at random and similar in qualities to the entire population is a:

• biased sample

• population

• representative sample

When some members of a population are more likely to be chosen than others is a:

• representative sample

• biased sample

A survey company was trying to see if people in the state are happy with the Governor of New Jersey. Which choice best represents a sample?

• a selection of people who live in South Jersey

• a selection of people who live in North Jersey

• every person in the state

• a random selection of people from each neighborhood in NJ

Pepsi wanted to see if people in the United States like their new logo. They decide to ask randomly 100 male and female employees. Is this a biased or representative sample?

• Biased

• Representative

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a population?

• The mayor's family

• The people who voted for the mayor

• 300 random voters

• The residents of the town

The mean of the data in the table is:

The mode of the data in the table is:

The median of the test grades is: