7th Grade- Day 2

The manager of a bagel shop wants to add some new flavors that will appeal to his customers. Which surveying method is most likely to produce a representative sample of the bagel shop's customers?

• Surveying any customer who is over the age of 20

• Surveying every fifth customer who enters the bagel shop

• Surveying all men and women between the ages of 18 and 20

• Surveying every fifth female customer who enters the bagel shop

The owner of an art supply store wants to know which arts are popular among her customers. Determine whether each section method will likely create a representative sample. Choose the correct answers.

• Survey every employee who works in the store.

• Survey every customer whose name is picked randomly from a list of all customers

• Survey every fifth person at a painting exhibition.

• Survey every fifth customer who purchases sketching supplies

• Survey every customer who spends more than $200.

A neighborhood has 250 families. Natalie randomly selects 20 families to survey about recycling. Of the 20 families she survey, 18 of them recycle. About how many families in her neighborhood recycle?

• 20

• 25

• 100

• 225

• 450

The owner of the local restaurant wants to know whether the customers would prefer a new garden salad or a new chicken salad on the menu. Which survey methods would likely produce representative samples? Choose all that apply.

• Ask every fifth male customer

• Ask every customer who orders a vegetarian entree

• Ask every tenth customer over the period of one week

• Ask every fifth customer who orders a chicken sandwich

• Ask every customer to flip a coin. If the coin shows heads, ask for the customer's opinion.

Katie is thinking of starting a baby-sitting service and wants to figure out what percent of the population have young children. She goes to a community meeting about unsafe condition on a playground and asks every fifth person attending the meeting if they have young children. Would this sample be likely to be representative of the population?

• Yes

• No